Full list of all 60 Aliens: Colonial Marines achievements.
The base game contains 50 achievements, and there is 1 DLC pack containing 10 achievements.
Earn Rank 60 as a Marine
Kill 2179 Xenomorphs
Complete all Challenges
Upgrade every Appearance slot once for your Marine
Upgrade every Loadout slot for a Xenomorph class
Complete an entire Challenge category
Kill 3 enemies with a single U4 Firebomb
Upgrade every Appearance slot once for a Xenomorph class
Edit a Xenomorph Loadout
Complete all Campaign levels on Ultimate Badass difficulty
Spend 30 Commendations
Collect all 35 Dog Tags
Complete all Campaign levels on Hardened difficulty
Purchase all Upgrades for a weapon
Upgrade every slot for a weapon
Collect all 12 Audio Logs
Kill a Crusher without it damaging you
Defeat the Raven in under 1:10 on Soldier difficulty or higher
Earn Rank 20 as a Marine
Find Newt's doll
Arm the emergency release and escape in under 2:30 on Sulaco Falls
Defeat all Xenomorphs in the Sulaco hanger bay without them crossing your barricade
Melee a Lurker that is pouncing towards you
Kill 5 Spitters without being damaged by acid
Complete all Campaign levels on any difficulty
Complete Home
Gib two enemies at once
Collect all 6 Legendary Weapons
Complete Hope in Hadley's
Track 100 hostile targets with the Motion Tracker
Complete Rampart
Complete One Bullet without setting off the alarm
Complete The Raven
Kill 10 Xenomorphs in a game with the M56A2 Smart Gun
Set up a UA 571-C Remote Sentry
Rescue a teammate from a Close Encounter
Kill 10 Xenomorphs that are using vents
Complete Sulaco Falls
Find the Easter Egg
Survive a Close Encounter with a Facehugger
Revive a teammate
Have another player join your party
Complete Distress
Collect a Legendary Weapon
Collect a Dog Tag
Complete a Challenge
Edit a Marine Loadout
Earn Rank 2 as a Marine
Kill a Xenomorph climbing on the walls or ceiling
Kill a Xenomorph with a shotgun at very close range
Complete Stasis Interrupted on Ultimate Badass
Sever the umbilical without missing a shot
Destroy all samples in the labs of the Queen module
Survive the Queen escape
Complete Stasis Interrupted on any difficulty
Find All Stasis Interrupted Audio Logs
Escape the FTL ship
Kill all the Lurkers in Sulaco engineering
Destroy the Legato
Find your family