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