Aliens: Colonial Marines Collection achievements

41.48%

No Need For Alarm

Complete One Bullet without setting off the alarm

42.51%

Micro Changes in Air Density

Track 100 hostile targets with the Motion Tracker

42.71%

Game Over, Man!

Complete all Campaign levels on any difficulty

43.53%

Don't Count Me Out

Revive a teammate

44.56%

Dragged Queen

Complete Home

45.17%

Secreted from What?

Kill 5 Spitters without being damaged by acid

45.38%

Just a Grunt

Complete Hope in Hadley's

47.02%

Still Got a Job to Do

Complete Rampart

51.54%

Adios, Muchachos

Gib two enemies at once

53.18%

Let's Rock!

Kill 10 Xenomorphs in a game with the M56A2 Smart Gun

53.39%

Quoth the Raven

Complete The Raven

60.37%

Need a Deck Of Cards?

Set up a UA 571-C Remote Sentry