Medal Completionist Achievement in Halo: The Master Chief Collection

Medals are preset rewards that appear in the Campaign and Multiplayer portions of the game. These medals showcase special in-game tasks that players have undertaken in the form of achieving different kill sprees, completing specific objectives, and performing other combat-oriented tasks.

As a general note, there are well over one hundred unique medals that can be obtained during your career lifetime on both Campaign and Multiplayer. Below, you will find ten of the most common medals with their appropriate descriptions:

• Headshot – Kill an enemy with a headshot (Campaign or Multiplayer)
• Grenade Stick - Kill an enemy with a Plasma grenade stick
• Supercombine - Kill an opponent by using a Needler
• Double Kill - Kill two opponents within four seconds of each other
• Multi-Kill – Score three or more kills within 1.5 seconds
• Beatdown – Kill an enemy/opponent with a melee attack
• Close Call - Kill an opponent while your health is low and survive
• Killjoy – Kill an online opponent who is on a Killing Spree or higher
• Killing Spree – Kill five enemies/opponents in a row without dying
• EMP – Kill an enemy within 2 seconds of destroying their shields with a charged Plasma Pistol shot (Campaign Only)

As you can see, there are many unique medals that can be obtained in both the Campaign and Multiplayer. On average, players who are tackling the Campaign on their own (or even with a Co-Op partner) can net anywhere from fifty to one hundred medals in a single mission. In Multiplayer, an experienced player can net an average of ten to fifteen medals so long as they vary their playstyle and know how to handle different encounters with online opponents.

This achievement may seem like a daunting task and even a tedious grind, but with so many Campaign playthroughs required, you will find that these medal achievements come naturally without much thought while tackling the four different Campaigns. Once you have obtained a total of 10,000 medals, this achievement will finally unlock.