Micro Changes in Air Density
Track 100 hostile targets with the Motion Tracker
6/25/2013
11:41:47 PM
Rare 33.6%
Short, Controlled Bursts
Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade
6/25/2013
6:17:00 PM
Very Rare 5.0%
Fire Drill
Arm the emergency release and escape in under 2:30 on Sulaco Falls
6/24/2013
8:59:23 PM
Rare 18.9%
Coming Outta the Walls!
Kill a Xenomorph climbing on the walls or ceiling
6/24/2013
6:43:04 PM
Common 77.5%
Kitchen Sink
Use a Billboard and a Jack Spot to successfully evade a pursuit (Single Player)
3/21/2013
6:20:47 PM
Rare 35.0%
