Beachhead Achievement in Halo: The Master Chief Collection

As soon as this mission begins, two Pelicans will land on the beach, dropping off two groups of Marine allies. Here, you will have to clear the entire beachhead without any allies dying. Unfortunately, there are several Grunts, Jackals and Elites stationed directly ahead defending the beach, so you’ll need to act quickly since the Marines tend to rush forward and take a lot of damage from the Covenant forces. There’s also a group of three to four Grunts hiding behind a rock formation to the left of the drop-off point. As if that weren’t enough, after clearing the initial wave of enemies, two more Elites and a trio of Jackals will ambush you as you move further down the beachhead.

With all this said, the Magnum and Frag grenades will prove to be extremely beneficial here. As soon you gain control of the Master Chief, quickly pick off the three to four Grunts on the left and then start lobbing grenades towards the Covenant forces on the right. Activating the Bandana and Boom skulls will help here as they grant infinite grenades and double the blast radius of all explosions.

Note that if you move quickly and get in front of your Marines, you should be able to flush out the enemies along the beachhead before any of your allies take a single hit. Once the beachhead is secured and the Warthog is delivered, the achievement will unlock.