Earn Rank 20 as a Marine

Set up a UA 571-C Remote Sentry

Complete Sulaco Falls

Kill a Xenomorph climbing on the walls or ceiling

Edit a Marine Loadout

Rescue a teammate from a Close Encounter

Kill a Xenomorph with a shotgun at very close range

Survive a Close Encounter with a Facehugger

Collect a Dog Tag

Complete One Bullet without setting off the alarm

Revive a teammate

Took your first enemy Dog Tag

Completed the street chase in Comrades in under 2 minutes 30 seconds without dying