Halo: Reach Achievement Guide & Road Map

Halo: Reach
Halo: Reach Achievement Guide

Overview:
- Estimated achievement difficulty: 7/10
- Offline: 38 [915]
- Online: 11 [85]
- Approximate amount of time to 1000: 50+ hours [10+ Campaign, 1+ Firefight, 40+ Multiplayer]
- Minimum number of playthroughs needed: 3+ [1 Campaign, 2+ Firefight]
- Number of missable achievements: None [Mission Select]
- Do cheat codes disable achievements?: None
- Does difficulty affect achievements?: Yes [Minimum difficulty must be Normal]
- Glitchy achievements: "If they came to hear me beg" read below
- Unobtainable achievements: None
- Extra equipment needed? : None

DLC: Noble Map Pack
- Estimated achievement difficulty: 7/10
- Approximate amount of time to 250: 3-5+ Hours
- Glitchy achievements? None!

DLC: Defiant Map Pack
- Estimated achievement difficulty: 2/10
- Approximate amount of time to 200: 2 Hours+
- Glitchy achievements? None!

DLC: Anniversary Map Pack
- Estimated achievement difficulty: 2/10
- Approximate amount of time to 250: 3-5 Hours
- Glitchy achievements? None!

Introduction:
"Welcome to Reach", the highly anticipated prequel by Bungie Software, part of the Halo Series. You will be taking control of Noble 6, part of the Noble Spartan Team. Fighting for the survival of Reach is your number one priority. You will go from destroying the Covenant offensive, saving civilians from imminent doom, and seeing a plot unfold. Get ready to wage war on humanities worst enemies, one more time.

Breakdown:
If you are a experienced Halo player, you can most likely jump right into the Campaign and complete it on Legendary difficulty alone. This may be the toughest Halo to date due to the AI being much smarter and agile. There are no collectibles to be found in this Halo.

Also, for "A Monument to All Your Sins", you must complete the game on Legendary on your own. As there are two separate "Complete the game on Legendary" achievements. Below I will post what Is recommend as how you should play through the game to get yourself 1000 with minimal frustration.

You must play on Normal or higher difficulty to get achievements like "Banshees", "Fast and Low", "KEEP IT CLEAN", etc.

Step One: Campaign: (25 Achievements for 725)
Campaign for Newer/Moderate Halo Players
(2 Campaign Playthroughs):
If you are newer/a moderate Halo player, then this is recommended for you to know the game and where enemies spawn.

First play through the campaign on Normal difficulty to understand how the game is and to get a feel for it. This will get you a minimum of 125 by just completing the campaign on Normal.

Then start your playthrough on Legendary by yourself and play through the campaign again. This should go faster since you know the feel of the controls and how the enemy AI responds. This will get you 325 for just completing it on Legendary alone. For more tips on Legendary, please refer to "Gods Must Be Strong".

Campaign for Experienced Halo Players
(1 Campaign Playthrough): Legendary
If you are a experienced Halo player, then this should be easier for you then others. Play through all ten missions found in the Campaign on Legendary. Take your time around the corners and stick back. For completing the campaign on Legendary alone, it will net you a minimum of 440. For more tips on Legendary, please refer to "Gods Must Be Strong".

Step Two: Firefight: (6 Achievements for 155)
Firefight has 6 achievements that relate to it. Firefight is much easier this time around as there are things you can enable like infinite ammo and unlimited health. Download this Firefight settings file to your account from Bungie to complete "Firestarter", "Blaze Of Glory ", " Heat In The Pipe", "Game, Set, Match " and "Crowd Control" in one easy go.

Step Four: Multiplayer: (9 Achievements for 65)
The multiplayer achievements are very spare in this portion of the game. This should take you the largest amount of time as it has to deal with uploading/recommending files, winning certain game types, and earning a killing spree. The longest portion will be getting to the level of Lt. Colonel to purchase an item. If you want to boost any of these achievements, please refer to this thread: Achievement Trading Thread.

Step Five: Misc/Clean up:
After completing the game on Legendary difficulty alone and doing all Firefight/Multiplayer Achievements. All you should have left is reaching a certain rank in UNSC, doing something misc. in a certain mission and killing enemies with a certain weapon. Refer to the guide below for any achievements you're still missing.

Noble Map Pack DLC

Step One: Living Dead Match ("Both Barrels"):
For this achievement, you need to gain a double kill with a shotgun, meaning you gain two kills with the shotgun within four seconds of each other. This achievement will come naturally as you play this game mode. It is very likely you will get it in your first match. The odds of you getting this will increase even more if you stay alive longer than most, simply stay in a safe spot with your shotgun out and you will eventually get it.

Step Two: Rocket Race Match ("Offensive Driver"):
For this achievement, you need to obtain a single kill in the game mode "Rocket Race." This is arguably the easiest achievement on the list. To easily gan a kill, flip an enemy warthog over, causing the enemies to leave their vehicle. Depending on your position in the Warthog, you will need to shoot your rockets, your rocket launcher, or run over the players to gain the achievement.

Step Three: Big Team Battle Match(es) ("Cross Mappin'", "Poppin' & Lockin'", "Totally Worth It", "You Ate All The Chips" (Possibly), and "You Blew It Up!" (Possibly):
All of these five achievements are possible to obtain in the playlist 'Big Team Battle,' but they may be easier done in the playlist for their appropriate game type.

Step Four: Mop Up
As stated before, if you were not able to obtain any of the achievements within the 'Big Team Battle' playlist, it may be best to obtain the remaining achievements in their respective playlists. If that fails, most if all of the achievements are easily boostable.

Defiant Map Pack DLC

Note: The original three achievements from this DLC ("Return to Sender", "Crackin' Skulls" and "Candy from a Baby") are obtainable on any map. This includes original maps from the game and maps from the two other map packs (Noble and Anniversary). The other three achievements ("Don't Touch That!", "Paper Beats Rock" and "All Alone") are only obtainable on the Defiant maps (Condemned and Highlands). It is highly recommended that the latter three achievements are boosted, as there is no specific playlist for these maps. They will only appear if everybody in the matchmade game owns the map pack.

Step 1: Team Objective
This requires ten players. Begin matchmaking in the Team Objective playlist. Here, you will be able to get "Return to Sende r", "Candy from a Baby", "Don't Touch That!" and "Paper Beats Rock". It is recommended to get the latter two in the same game if Armor Lock is a load-out option. "Crackin' Skulls" can also be gained in this playlist, but you may prefer to do it in Rumble Pit which only requires 8 players.

It is also worth noting here that the Team Objective playlist is within the "Evolved" section of playlists. This means that it has received a "Title Update". Title updated game types are marked with "TU" at the start of their names (you will notice this on the voting screen). Some game types within this playlist do not contain Armor Lock as a loadout option, so bear this in mind when going for "Paper Beats Rock".

Step 2: Living Dead
This requires twelve players. "All Alone" is achieved in the Living Dead playlist. Infection games last for 3 rounds, so once you get a game on Condemned/Uplink, a maximum of three people have the opportunity to get this in a single game. The Living Dead playlist is found within the "Standard" section of playlists.

Anniversary Map Pack DLC

Introduction:
This DLC adds 6 PvP maps (Solitary, Battle Canyon, High Noon, Penance, Ridgeline and Breakneck) and one Firefight map (Installation 04). These achievements must be unlocked on these maps and cannot unlock in custom games; they must be matchmade games.As always, finding a dedicated boosting party will allow you to unlock these much quicker.

Mode-Specific Achievements:
Infection - Infection mode has a maximum of 12 people (depending on the playlist). The only achievement you can unlock in this mode for this DLC is “Emergency Room.” For this one, all that is required is you infect three people before the match ends.

Capture the Flag - Capture the Flag mode has a maximum of 8 people. “Stick it to the Man!” must be unlocked specifically in this mode. Make sure you are carrying plasma grenades then find the flag carrier and kill them by sticking them. This is best done on smaller maps like Battle Canyon.

Headhunter - Headhunter mode has a maximum of 12 people (depending on the playlist). “Bounty Hunter” can only be unlocked in this mode. All that is required is you collect 10 (or more) skulls (either by killing enemies or picking them up from already dead enemies) and deposit them in the safe zone. Doing so will also award the player with the ‘Skullamanjaro’ medal.

Mop Up:
If you didn’t manage to unlock these, you should have “Top Shot,” “Dive Bomber,” “License to Kill,” “From Hell’s Heart” left. These can be unlocked in any mode except Infection. The requirements for these are not difficult and you should get these through natural gameplay if trying.

Overall Conclusion:
Halo: Reach is without a doubt, if not the best Halo game that has come out from the series. It shows what the series can still continue to achieve and progress even when we sometimes think there couldn't be more done to make it a better game. Truly, one for the record books.

[XBA would like to thank SideDish120 for this Roadmap]
[XBA would like to thank Spade. for the Noble Map Pack DLC Roadmap]
[XBA would like to thank Jardinho for the Defiant Map Pack DLC Roadmap]
[XBA would like to thank bLaKgRaVy for the Anniversary Map Pack DLC Roadmap]

The Soldier We Need You To Be

25
Completed the Campaign on Normal difficulty.
(41)
Please refer to Gods Must Be Strong for more information.
Folks Need Heroes...

50
Completed the Campaign on Heroic difficulty.
(25)
Please refer to Gods Must Be Strong for more information.
Gods Must Be Strong

125
Completed the Campaign on Legendary difficulty.
(104)
Legendary is much harder in this Halo then others in the past as the AI is much tougher. Here are tips on how to complete the campaign on Legendary:
- Conserve your ammo. Running out of ammo is severely dangerous. Enemies already take a large amount of bullets, and there isn't much ammo to be found laying around. If you do find yourself out of ammo for a weapon, swap it for anything. You need to have a weapon no matter what.
- Be patient. Nothing will get you killed faster then running out of cover blindly.
- If you need to, run out and see where enemies are at to get a feel of what's to come.
- Save your grenades, they will become your lifesaver. Use them only in extreme measures and taking out large groups of enemies.
- During any portion of the campaign, be on the lookout for the "Drop Shield" ability. This is the best ability to have during the game. It shields you from enemies fire/grenades, and heals you while you are inside it.
- Always be on the move, never stop and be in one area. Enemies will just point all their fire at you and kill you almost immediately.
A Monument To All Your Sins

150
Completed every mission in Halo: Reach alone, on Legendary.
(422)
You must complete all 9 campaign missions on Legendary Difficulty.
Please refer to Gods Must Be Strong for more information and tips.

The missions you must complete are as follows:
- Winter Contingency
- ONI: Sword Base
- Nightfall
- Tip of the Spear
- Long Night of Solace
- Exudos
- New Alexandria
- The Package
- The Pillar of Autumn
You do not need to do "Noble Actual", as it is only a cutscene, not a mission.
We're Just Getting Started

10
Completed the 2nd mission on Normal or harder.
(7)
Complete "Winter Contingency" on Normal or harder to unlock this.
*This will unlock through natural story progression*
Protocol Dictates Action

10
Completed the 3rd mission on Normal or harder.
(2)
Complete "ONI: Sword Base" on Normal or harder to unlock this.
*This will unlock through natural story progression*
I Need A Weapon

10
Completed the 4th mission on Normal or harder.
(10)
Complete "Nightfall" on Normal or harder to unlock this.
*This will unlock through natural story progression*
To War

10
Completed the 5th mission on Normal or harder.
(5)
Complete "Tip of the Spear" on Normal or harder to unlock this.
*This will unlock through natural story progression*
You Flew Pretty Good

10
Completed the 6th mission on Normal or harder.
(12)
Complete "Long Night of Solace" on Normal or harder to unlock this.
*This will unlock through natural story progression*
Into The Howling Dark

10
Completed the 7th mission on Normal or harder.
(5)
Complete "Exodus" on Normal or harder to unlock this.
*This will unlock through natural story progression*
Dust And Echoes

10
Completed the 8th mission on Normal or harder.
(4)
Complete "New Alexandria" on Normal or harder to unlock this.
*This will unlock through natural story progression*
This Is Not Your Grave

10
Completed the 9th mission on Normal or harder.
(3)
Complete "The Package" on Normal or harder to unlock this.
*This will unlock through natural story progression*
Send Me Out... With A Bang

10
Completed the 10th mission on Normal or harder.
(7)
Complete "The Pillar of Autumn" on Normal or harder to unlock this.
*This will unlock through natural story progression*
They've Always Been Faster

25
Cleared the 2nd mission without setting foot in a drivable vehicle.
(56)
*Must be done on Normal or harder difficulty*
You first area you find a drivable vehicle during the 2nd mission(Winter Contingency) after the first firefight with the Covenant. Avoid all vehicles during the 2nd mission. First you must find a Covenant outpost, then it will tell you to go save the survivors. After you have found and fought off the Covenant drop ships that come, you will have completed this.
Two Corpses In One Grave

25
Killed 2 vehicles at once with the Target Locator in the 3rd mission.
(50)
*Must be done on Normal or higher difficulty*
This is done on "ONI: Sword Base". After you have fought the onslaught of enemies that attack you. You will go around a bend and be put into a sort of bunker with opening doors. On the left you will see the Target Locator. Once the doors open, you will see a rock in front of you. At the bottom of the hill, you will see two wraiths appear and be near each other. Call in the strike in the center of both of them, and destroy them both at the same time. This may take some timing and aiming/calling in the strike before they come to the area.
Banshees, Fast And Low

25
Hijacked a Banshee during the Reach Campaign.
(60)
*Must be done on Normal or harder difficulty*
The easiest level to do this on is during the fifth mission found in the campaign, "Tip of the Spear". During the mission you will find a Jet Pack, this may come in handy if you need it. You can start at Rally Point B, which puts you at the part where your team flies the falcon into the Spire. As you near the spire, you will see Banshee's flying just before the Spire. On the left side, there is a Banshee that flies near the ground a lot and bumps into the ground. Follow this Banshee around until it dips low enough to get inside. Press and hold to hijack the Banshee.
Your Heresy Will Stay Your Feet

25
Killed the Elite Zealot before he escaped during the 5th mission.
(29)
*Must be done on Normal or harder difficulty*
This is done on the mission called "Tip of the Spear". You can start at Rally Point Alpha. After you have cross the bridge with the Warthog, you will hear the AI say that there is a high value target is in the area. An "Elite Zealot". After you go up the stairs and come to a area that you see a turret at the end. Take a left, and this will put you inside of a very large open room. Stay there, and you will see the Elite Zealot come out with a Red Arrow above his head. Kill him quickly and this will be done.
If They Came To Hear Me Beg

25
Performed an Assassination against an Elite to survive a fall that would've been fatal.
(464)
*Must be done on Normal or higher difficulty*
The easiest level to get this done on is right at the start of Pillar of Autumn. At the start, you will come to the edge of the cliff. If you look down, you will see a semi truck on the left and a car on the right. Between the semi truck and car, you will see a elite and three grunts. As soon as start the mission, Emile will say, "Race you to her". The Elite will back up and put you in reach to hit him. *Sprint off the cliff, and immediately hit to stop the sprint*. As you are falling, fall on his back. Just before you hit him, hold down to perform the assassination. This may take a couple tries.

* - You must stop the sprint as soon as you jump. The game still thinks you are running and doesn't recognize that it would be a height big enough to kill you.
Wake Up Buttercup

25
Destroyed the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
(52)
This is done on "Long Night of Solace". At the start, you will be protecting the ship from the enemies that are attacking it. After this, you will see the long purple Covenant Ship that you have to attack. Immediately go behind it and start shooting rockets at it's engines. Slow down by holding down on the to not approach the ship so quickly. After this is done, start taking out the enemies that they send out to attack you. Banshees can easily be taken out with the cannon, but the Seraphs are a different story. To easily take out Seraphs, use the cannon first to take out their shields, then hit them with one attack of the missiles. This will make them much easier and faster to deal with. Once there are only 5 enemy ships left, they will show up on your screen with red arrows pointing where they are. Take out the remaining ships to complete this.
Tank Beats Everything

25
Finished the 9th mission on Legendary with the Scorpion intact.
(57)
During the 9th mission, you will see the Tank. Enter the tank and go through the level without it blowing up/becoming unusable. It is okay if it takes damage, just cannot be destroyed. Once you reach the familiar bunker, the achievement will unlock. You cannot skip the tank as the tank must reach the bunker.
Lucky Me

25
Earned a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
(30)
*Must be done on Normal or higher difficulty*
For the triple, you must be using the jet pack. Not while you are free falling or have run out of thrust.

During Mission 7, "Exodus", you will go in a elevator that takes you to a open part of the tower. You will see banshees flying around and a couple troops in front of you. One of these troops has a rocket launcher. Swap out your weapon for the rocket launcher with the and hold on to it. You will walk a little to the left and be told to grab a jet pack. To use the jet pack, you press the and the to go in the direction you want. After you jettison across a couple platforms in the Cargo Port, you will come to a bigger platform with enemies on it. While using the jet pack, shoot the rockets at the 3 grunts on the lower of the two platforms for a easy Triple Kill.

This can easily be done during a Bonus Round in Firefight. Large groups of grunts will be dropped down(8-12 in one group). Get ready for the Dropships and sit on top of a higher part of the level(i.e. a rock or rooftop). Once they jump out, start to jettison into the air and shoot a rocket down at them. Refer to "Heat in the Pipe" for more information.
KEEP IT CLEAN

5
Killed 7 Moa during the 2nd mission of the Campaign.
(61)
*Must be done on Normal or higher difficulty*
You cannot die as it will reset you kill counter.

Moa are the birds that look just like ostriches. They are two legged creatures that you first encounter on the second mission, "Winter Contingency". You must kill them with bullets. If they are killed by AI fire or grenades. It will not count.
I Didn't Train To Be A Pilot

10
Killed 3 of the anti-aircraft batteries during the 8th mission.
(8)
This will more then likely come from natural play. While playing through this mission with the Falcon, you will be shot at with anti-aircraft batteries (turrets). At the end of the mission you must take out 5 of these turrets.
Doctor, Doctor

5
Used a Health Pack to replenish life after taking body damage.
(21)
Health Pack’s are found on walls all around you. They are generally found in buildings or bunkers. They have a H on them that glows and fades orange.
That's A Knife

10
Performed an Assassination on an enemy.
(12)
To assassinate a enemy, go behind a enemy and hold down . It is easier to do on a enemy that doesn’t know of your presence. This can be done in Matchmaking, Custom Game, Campaign, and any other portion of the game.
I See You Favour A .45

10
Killed 10 enemies in a Firefight or Campaign session with the M6G pistol.
(6)
You cannot die as it will reset you kill counter.

Magnum - M6G Pistol: The M6G has a 8 round magazine with a 2x zoom that is initiated by pressing in the . The slower you fire the weapon, the greater the accuracy. Headshots with this weapon are one shot kills against grunts. Once the shield is gone from protecting a Elite, they are also a one shot headshot with this pistol.
An Elegant Weapon

10
Killed 10 enemies in a Firefight or Campaign session with the DMR.
(12)
The first place you find a DMR is during the second mission, "Winter Contingency". Once you get out of the Falcon, you will be told to "Retreat into the Relay Outpost" after defending it. After the cutscene, you will be put into a dark corridor. Immediately turn to your right, and you will see two DMR rifles on the gun rack on the wall.

You start the third mission, "ONI: Sword Base" with a DMR also.

DMR - M392: The DMR is a single shot rifle(semi-automatic) with a scope on top that has a 3x zoom. To use the scope, press . The easiest enemies to kill are the grunts since they have no over shield or shield on them. Aim for the head for easy kills.
Swap Meet

10
Traded weapons with an AI ally in Campaign.
(13)
To trade weapons with a AI ally (Not a Sparton, a trooper) must press and hold near them. If they are not facing you, hold and they will turn around to face you to swap weapons. You cannot swap weapons if you have no ammo for that particular gun. It is okay if it has low ammo, but cannot be completely out.
A Spoonful Of Blamite

10
Killed 10 enemies in Firefight or Campaign with a supercombine explosion.
(23)
*Must be done on Normal or higher difficulty*
You cannot die as it will reset you kill counter.
This can be done in any game mode. A supercombine explosion is when you put so many needles into a enemy, the needles explode and cause instant death.
There are two supercombine weapons that are found in this game:

Needler - T33 GML: The Needler is a Automatic gun that shoots faster the longer you shoot. This Needler has a magazine that holds 24 needle shots. The amount of needles needed to supercombine different enemies varies upon the enemy and how powerful they are.

Needler Rifle - T31 Rifle: Similar to the DMR, but the Covenants version. The Needler Rifle is a semi-auto single shot rifle that has a 3x zoom scope on top. To use the scope, click in the . A enemy that is shot three times with no shield will cause a super combine explosion.

Needle Kill Medal:
If you get a kill that is caused by a supercombine, you will see this medal appear on your screen. This only shows up in:
- Campaign (Only when scoring is turned on for Campaign)
- Firefight
- Matchmaking/Multiplayer
- Custom Games
Be My Wingman Anytime

5
Let a teammate spawn on you 5 times in an Invasion Matchmaking game.
(24)
While playing the Invasion gametype, after your teammates die. They can chose where to spawn, and if a player is alive, you can spawn next to them. If need be, stick back a little out of enemy sight. And have your teammates rush a area and if they die, have them spawn on you. This must be done in one single Invasion game.
Yes, Sensei

10
Earned a First Strike Medal in a Matchmaking game.
(18)
First Strike Medal: A First Strike Medal is to get the first kill in a matchmaking game. This may take some time and patience, but if you are comfortable with rushing and knowing a map/where the other team spawns. This should come easier, and if not, will come with time.
Skunked

10
Won a game of Invasion in the 1st phase.
(39)
Invasion is a gametype in which you are either the Spartans or Elites, and attacking or defending multiple areas. There are three phases found in a game. At the end of each game, the attacking team gets a score based on how far/how many points your team has taken over. Either attacking or defending:

Attacking - Gain as many points as you can.
Defending - Stop the attacking team from gaining points.

In order to get this Achievement you must be defending, and stop the attacking team from getting past the first Phase. The first Phase lasts 4 Minutes.
What's A Killing Spree?

5
Earned a Killing Spree in multiplayer Matchmaking.
(19)
Killing Spree Medal: A Killing Spree is to get 5 kills in a row without dying. It doesn't matter how far the kills are spaced out time wise, but you cannot die while getting the 5 kill streak. Here are some tips on killing enemies faster:
- If you see a enemy around a corner, throw a grenade first to damage him, shoot him and/or melee him after. This is to cause damage first so if you both start shooting at the same time, he is already damaged and will die faster.
- Crouching causes you to not appear on your enemies motion sensor. You can hide behind a corner if you see a enemy coming for you and assassinate him possibly once he walks by.
- If the enemy is far away, try not bring attention to yourself and just start shooting. Plan where you are going to go and plan ahead.
- If you can grab a Power Weapon like a Rocket Launcher or Sniper, and you know how to use them correctly, this should be easier for you.
- Grabbing Active Camo/Invisibility can give you a huge edge as enemies won't see you, and you can go behind the enemy and kill him.
Crowd Control

10
Earned a Killionaire medal in Firefight.
(37)
A Killionaire medal is to get 10 kills within 4 seconds of one another. This is easiest done when during a bonus round where there are a ton of grunts. Use a Rocket Launcher with the ammo setting put to "bottomless cup". Refer to "Heat in the Pipe" on more information.
Use this Firefight game file to get this achievement with ease: Firefight Achievements Gametype.
Knife To A Gun Fight

5
As an Elite, killed 5 Spartan players in Matchmaking.
(13)
This is done while playing the "Invasion" gametype. You play as either the Spartan's or the Elites. When you are chosen to be the Elites at the start of the game.(The entire game you play as only the Elites or Spartans. It doesn't change) Kill 5 players.
Score Attack

10
Scored 15,000 points in Score Attack Firefight Matchmaking.
(8)
This is easiest done with 4 players, go to co-operative firefight and start searching for a "Rocketfight" playlist. Work together to gain multikills. This gametype is easiest as you have Rockets for easy kills and unlimited ammo.
Firestarter

10
Scored 50,000 points in a Firefight game.
(1)
Refer to Heat in the Pipe for more information.
Blaze Of Glory

25
Scored 200,000 points in a Firefight game.
(11)
Refer to Heat in the Pipe for more information.
Heat In The Pipe

75
Scored 1,000,000 points in a Firefight game.
(105)
Download this gametype to your fileshare to get these achievements with ease: Firefight Achievements Gametype
If you are unable to download the gametype from Bungie.net. Then from the Main Menu of Halo: Reach, Press Start> Go to "File Browser"> Go down to "New Custom Search"> then search the Gamertag: "rabidkitty4" without quotes. Then download the Gametype titled "Firefight Achievements".

If you want to put in the settings yourself, refer to this: Firefight Game Settings

The gametype variant lets you have infinite ammo without reloading, infinite health, infinite jet pack, the max point multiplier with Legendary difficulty, and all the skulls turned on. You want to stick with the Rocket Launcher as it is given to you in the loadout screen. This will take you about 1 hour to do this on your own with ease. To get this done faster, get about 2-3 friends to join you.
Game, Set, Match

25
Completed a Firefight set on Legendary without dying.
(24)
Sets, Rounds and Waves
- One set has 3 rounds.
- Each round has 5 waves of enemies that attack you.
- At the end of each set is a Bonus Round.
To get this, you must survive 1 Set, which is 15 waves of enemies, on Legendary difficulty. Refer to "Heat in the Pipe" for more information on how to complete this without any trouble.
Make It Rain

10
Purchased an item from the Armory that required the rank of Lt. Colonel.
(58)
= 450,000 cR

Items to purchase at Lt. Colonel:

Grenadier knee guards - 45,000 cR
JFO Helmet - 60,000 cR
MJOLNIR Mk. V Helmet - 130,000 cR
Gungnir Helmet - 250,000 cR
Black Visor - 100,000 cR

How to earn cR: You earn cR from anything you do. Killing enemies, getting medals, completing a portion of the story, etc. Most of your cR comes from commendations. (medals like: Headshot, Double Kill, Killing Spree, etc) There are a lot of commendations to get. Doing the daily and weekly challenges are always a good boost of cR that usually can be acquired fairly easily. But if you want to gain cR quickly and efficiently, please refer to this thread: Credit Boosting Methods
The Start Of Something

15
Reached the rank of Corporal in the UNSC.
(9)
= 10,000 cR
To reach the rank of Corporal, you must earn a total of 10,000 cR. You earn cR from playing multiplayer, playing campaign, killing enemies, anything that you do in the game will get you cR.

Refer to Make It Rain on how to gain cR.
An Honor Serving

25
Reached the rank of Captain in the UNSC.
(21)
= 210,000 cR

Refer to Make It Rain on how to gain cR.
A Storage Solution

5
Used the File Browser to upload a file to your File Share.
(23)
How to upload a file:
Press Start, Select File Browser, Select Most Downloaded, Select Screenshots, Press , Select Download, Back out to File Browser, Select Local Files, Select Screenshots, Press , Select Upload to File Share.

How to create a screenshot/video:
After playing a campaign level/firefight match/multiplayer game. The footage from what you have done will be saved in Theater. Go to Theater in the main menu, and choose your film. (Your most recent game you played will be already selected.) Start the film, and in the bottom right you will see:
- Take Screenshot(For screenshots)
- Record Clip(For video clips)
Choose one of these options and once you have taken the screenshot or video. It will give you the option to either:
- Autoname and Save
- Save As...
Chose one of these options, and you have saved a screenshot or video.
A New Challenger

10
Completed all of the Daily Challenges in a given day.
(15)
Daily Challenges change from day to day. To find your challenges, press , and scroll down to see Challenges. Select "Challenges" by pressing , and it will give you a detailed screen of what the challenges are for the day (as well as the weekly challenge at the bottom). It will show progress stats, and if you select that challenge, it will put you in the appropriate lobby to start working on the challenge. They are the four challenges at the top of the list. Complete all 4 challenges and you have completed all the daily challenges.
If you are unsure on what/which challenge is what, or how to complete the challenge, please refer to this: Daily/Weekly Challenges Thread
Make It Drizzle

10
Purchased an item from the Armory.
(10)
Right from the start of the game they make you choose your sex (Male or Female) and then put you into the armory. Purchase anything that you see that you can afford with the starting credits they give you.
Cool File, Bro

5
Recommended a file to someone.
(15)
From the Main Menu of Halo: Reach, Press Start> Select "File Browser", go down to "Most Downloaded", select "Screenshots" then Press X on the first Screenshot and Press A to "Recommend to Friends".
Lemme Upgrade Ya

10
Advanced a Commendation to a Silver state.
(17)
To view your Commendations. Click on your gamertag while in a lobby, then go to Service Tag > Commendations. Commendations are challenges, and each portion of the game has Commendations for that particular game mode.
- Campaign
- Firefight
- Multiplayer
As you progress, for example, in the "Pinpoint" Commedation in campaign. You will progressively get it to a higher level by completing more and more of that specific Commendation.

The commendations upgrade in this particular order:
Iron > Bronze > Silver > Gold > Onyx

You can check your progress on all of the Commendations online through bungie.net's Commendations Page.
One Down, 51 To Go

10
Completed a Weekly Challenge.
(34)
Weekly Challenges are different every week. To find your challenges; press , and scroll down to see Challenges. Select "Challenges" by pressing , and it will give you a detailed screen of what the challenges. It will show progress stats, and if you select that challenge, it will put you in the appropriate lobby to start working on the challenge. The bottom most/highest credit count challenge, is the Weekly Challenge.
If you are unsure on what/which challenge is what, or how to complete the challenge, please refer to this: Daily/Weekly Challenges Thread

There are 7 achievements with a total of 250 points

Both Barrels

50
Noble 1: Earn a Double Kill with the shotgun in multiplayer Matchmaking.
(72)
This achievement can only be unlocked in Matchmaking within any competitive playlist. The achievement requires you to earn a Double Kill medal (2 kills within 4 seconds of each other) with the Shotgun. The easiest playlist to get this achievement is within the Living Dead playlist, as you spawn with a shotgun if you are a human and the zombies are fairly easy to kill. This achievement can be unlocked on any map.
Cross-Mappin'

50
Noble 1: Kill a player at long range with the DMR in a matchmade Slayer game.
(225)
This achievement can only be unlocked in Matchmaking within any competitive playlist that contains the Slayer game type. This achievement also requires the DMR weapon. The DMR weapon is usually the default weapon in Slayer, but can be found on any map. To unlock this achievement, you must kill an enemy using the DMR at a long range. You can tell if you're within the range when the reticule isn't red, but you're targeting the enemy. The kill doesn't need to be a headshot in order to count. The easiest playlist for this achievement is Big Team Battle, as there are more enemies, and you play on the bigger maps. This achievement can be unlocked on any map.
Offensive Driver

20
Noble 1: Earn a kill in a matchmade Rocket Race game.
(108)
This achievement can only be unlocked in Matchmaking within the Multi Team playlist, as it is the only playlist with the Rocket Race game type. To get this achievement, you must simply earn a kill against an enemy. However, you can only harm an enemy when they're NOT within a vehicle, so you'll have to either forcefully eject them from the vehicle or wait until the driver flips the vehicle by accident. Once that happens, simply fire away at the enemy to get your kill and achievement. This achievement can be unlocked on any map.

Also, note that you must kill an enemy by either splattering them or with a Rocket Launcher within the passenger seat. Killing an enemy using the Rocket Turret on the back of the Warthog will not count.
Poppin' & Lockin'

25
Noble 1: Destroy a vehicle using Armor Lock in a matchmade game.
(72)
This achievement can only be unlocked in Matchmaking within any competitive playlist that has a loadout with the Armor Lock ability and a vehicle. To get an Armor Lock kill, you must wait until an enemy vehicle (preferably a smaller vehicle, such as the Ghost or Mongoose) attempts to splatter you. Just before the vehicle hits, activate Armor Lock. If done properly, the vehicle should explode upon contact and you will get your achievement. The easiest playlist for this achievement is Big Team Battle, as there are more enemies and maps with vehicles on them.
Totally Worth It

50
Noble 1: Earn a Double Kill from the Grave in multiplayer Matchmaking.
(263)
This achievement can only be unlocked in Matchmaking within any competitive playlist. This achievement requires you to earn a Double Kill medal (2 kills within 4 seconds of each other) by killing 2 enemies from Beyond the Grave (while waiting to respawn). This can prove rather difficult, so your best bet is to have a plasma grenade handy and get into a firefight with 2 enemies. Get them as close to each other as possible and let them take your shields and health away. When you're about to die, lob a plasma grenade into one of the enemies to stick him. Once you're dead and if you got them close enough together, the explosion will be enough to kill both enemies. This achievement can be rather difficult to do legitimately, so your best bet is to set up a boosting party and get the achievement that way (you can ask for help through the Achievement Trading Thread here). This achievement can be done on any map.
You Ate All the Chips

42
Noble 1: Collect all of the flags in a matchmade Stockpile game.
(1148)
This achievement can only be unlocked in Matchmaking within any competitive playlist that contains the Stockpile gametype. To earn this achievement, your team must collect all 4 flags on the map and place them within your own capture point at the same time. In other words, before the timer for flag captures reaches zero, all the flags on the map must be within the capture point. If successful, the whole team gets the achievement. This is arguably the hardest achievement within the map pack, so unless you have a good team, it would probably be best to boost this achievement (you can ask for help through the Achievement Trading Thread here). This achievement can be done on any map.
You Blew It Up!

13
Noble 1: Blow up the research facility in a matchmade Invasion game on Breakpoint.
(758)
This achievement can only be done within the Invasion playlist, and can only be done on the map Breakpoint, so all the players within an Invasion game must own the Noble DLC for this map to appear. All that is required for this achievement is for your team (which should be on Offense) to complete the second stage of Invasion, which is to blow up the research facility, revealing the core. The entire team gets credit for the achievement, but only one person needs to carry out the objective.

There are 6 achievements with a total of 200 points

Return to Sender

30
Defiant: Successfully return two flags in a matchmade CTF game.
(122)
Find a CTF game in Matchmaking - The Team Objective playlist is best for this. Return two of your own flags that the opposite team have dropped. To return a flag, place your character near the flag and remain within the radius of the flag for about 5-10 seconds. This achievement can be done on any map.

Due to a glitch, all three Defiant Achievements can currently be unlocked in Custom Games. See Candy From a Baby for more details.
Crackin' Skulls

45
Defiant: Kill 3 players with the Oddball in a matchmade Oddball game.
(120)
Head into Matchmaking and find an Oddball game. The Rumble Pit and Team Objective playlists have Oddball gametypes, but I recommend Rumble Pit as there are more enemies to kill. Once you're in a game, pick up the Oddball and melee three opponents with it. To melee, press the button that Melee is assigned to on your control scheme (e.g. for Default, for Recon, etc.). This achievement can be done on any map.

Due to a glitch, all 3 Defiant Achievements can currently be unlocked in Custom Games. See Candy From a Baby for more details.
Candy from a Baby

75
Defiant: Capture two flags from an enemy capture zone in a matchmade Stockpile game.
(251)
Go into Matchmaking and find a Stockpile game. The Team Objective or Big Team playlists are best. Once you're in a game, wait for the opposite team to place a flag in their capture zone. Now, before the timer ticks to zero, take the flag within their capture zone, and place it within your team's capture zone. It doesn't matter how long you take as long as you don't drop the flag. Repeat this once more and the achievement is yours. This achievement can be done on any map.

Due to a glitch, all three Defiant Achievements can currently be unlocked in Custom Games. To do this glitch, you will need a boosting partner. Also, you must play each of the gametypes at least once in Matchmaking, or you can download the relevant gametypes HERE. Once you have the gametypes, depending on what option you chose to get the gametypes, perform this following step:

Matchmaking - If you got the gametypes from Matchmaking, go into Custom Games, press "Game Type", go into your Temporary History and select the game type you want.

Download - If you downloaded the gametypes from the thread, do the same as Matchmaking, except select the game type section from the list and select the game type you downloaded. DO NOT SELECT THE DEFAULT GAME TYPE AT THE TOP OF THE LIST!

Choose any map, start the game and follow the guide.
Don't Touch That!

25
Defiant: Prevented the attacking team from touching the flag in a matchmade 1-Flag CTF game.
(980)
1-Flag CTF will almost always be on the "Condemned" map. With that said, you must prepare to play strong defense in order to prevent the enemy team from touching your flag. Use whatever you can - armor abilities, grenades, power weapons - to your advantage and do not stray too far from your flag, because this allows opportunity for the enemy to slip past you and simply touch the flag for even a second.

You must let the round's timer run out. If the enemy team has not touched the flag at all by the time the round is over, the achievement will unlock for everyone on the defending team.
Paper Beats Rock

15
Defiant: Assassinated a player that just exited Armor-Lock in a matchmade game.
(627)
This is self-explanitory. You must play a match as you normally would, but when an enemy used the Armor-Lock, be ready to position yourself behind them. When they break free, try to assassinate them quickly before they can turn around.
All Alone

10
Defiant: Was the last surviving uninfected player in a matchmade Infection game.
(1292)
This achievement will also be obtained on the "Condemned" map. As a human player, you must survive the round until you are the last player standing. You are given a Magnum and Shotgun as a human, so be sure to use the pistol for long-ranged kills on the Infected, and the Shotgun during close quarter situations.

There are no clear hiding spots on this map, but the room you spawn in has a glass platform overlooking the rest of the room. Climb the stairs, and hang around up here. This is probably the best area to hold out during the match.

There are 7 achievements with a total of 250 points

Top Shot

50
Anniversary: Earned 3 headshots in a row in a matchmade game.
(98)
The DMR or Magnum will be necessary to pull this off. Simply score three headshot kills in a row without dying. Use the DMR's accuracy and range to your advantage by staying back behind cover while picking the enemies off from afar.
Emergency Room

15
Anniversary: Infected 3 players in a single round in a matchmade Infection game.
(499)
Search for an Infected game in the new Anniversary playlist. As an Infected, you must kill three human players in the same round. The human players are armed with magnums and shotguns and can prove to be quite the threat. Try to sneak up on them or overwhelm them with a direct assault with multiple Infected teammates in order to score your three kills.
Stick it to the Man!

20
Anniversary: Killed the flag carrier with a Plasma Grenade in a matchmade game.
(191)
As the description says, simply stick - with a Plasma Grenade - an enemy flag carrier during a Capture The Flag game. The flag carrier cannot defend themselves unless they drop the flag. Use this to your advantage and try to stick them while they're back is turned or before they decide to drop the flag.
Dive Bomber

50
Anniversary: Performed a Beat Down on an enemy while using the Jetpack during a matchmade game.
(203)
When the match begins, choose the loadout that contains the Jetpack armor ability. It takes two beat downs from the front, and one from the back to kill an enemy. Thrust your Jetpack upwards, and while your are descending, aim to melee strike the enemy from behind. Do not hold the melee button, or you will accidentally assassinate them, voiding the achievement in the process.
License to Kill

15
Anniversary: Ran over 5 people with a vehicle in a matchmade game.
(192)
This achievement must be done on either the "Breakneck" or "Ridgeline" maps. The best vehicle to use would be the Ghost, as it has the boost-ability. Pilot the Ghost around the map during the match and aim to splatter 5 enemies before the game ends. To ensure all 5 kills register, try to use the same vehicle for the kills, meaning you will try to aim for a Splatter Spree while piloting the Ghost.
Bounty Hunter

75
Anniversary: Captured 10 skulls at once in a matchmade Headhunter game.
(620)
In Headhunter, two teams are thrown against each other, with the goal of capturing skulls from the enemy team. Each player starts off with one skull. When you kill them, their skull will drop and you can pick it up. Once you have 2+ skulls in your possession, there will be a waypoint over your head that says how many you have.

If you kill an enemy who has 6 skulls on them, they will drop all 6. Simply round up 10 skulls and bring them to the marked "safe-zone" in order to score them. Scoring 10 skulls at once will end the game right away.
From Hell's Heart

25
Anniversary: Killed an enemy with their own grenade that was stuck to you in a matchmade game.
(223)
This is a great achievement that can be extremely fun while trying to obtain. You will essentially have to allow yourself to get stuck by an enemy's Plasma Grenade. You will also need to hope that this enemy is very close to you, in order to sprint up to them, which will allow the explosion to kill you both. The achievement will unlock once you have both died from the same grenade.