Coming Outta the Walls!
Kill a Xenomorph climbing on the walls or ceiling
2/14/2013
4:32:50 AM
Common 77.5%
Unstoppable
Reach Wave 15 in each mission of Special Ops Survival mode.
5/2/2012
1:34:24 AM
Ultra Rare 1.3%
No Assistance Required
Complete a Special Ops Mission Mode game on Hardened or Veteran with no player getting downed.
3/24/2012
12:15:34 AM
Ultra Rare 4.4%
Survivor
Reach Wave 10 in each mission of Special Ops Survival mode.
3/15/2012
8:16:23 AM
Ultra Rare 1.8%
This is the End
Complete "Scorched Earth", "Down the Rabbit Hole", and "Dust to Dust" on Veteran difficulty.
3/12/2012
8:13:46 AM
Ultra Rare 2.3%
The Darkest Hour
Complete "Eye of the Storm", "Blood Brothers", and "Stronghold" on Veteran difficulty.
3/12/2012
4:28:57 AM
Ultra Rare 2.5%
City of Lights
Complete "Bag and Drag" and "Iron Lady" on Veteran difficulty.
3/11/2012
6:44:50 AM
Ultra Rare 2.7%
Payback
Complete "Mind the Gap", "Goalpost", and "Return to Sender" on Veteran difficulty.
3/11/2012
5:17:37 AM
Ultra Rare 2.9%
Kill Box
Kill 20 enemies with the Chopper Gunner in a single run in "Return to Sender."
3/11/2012
4:43:00 AM
Very Rare 9.4%
Out of the Frying Pan...
Complete "Persona Non Grata", "Turbulence", and "Back on the Grid" on Veteran difficulty.
3/11/2012
2:43:15 AM
Ultra Rare 3.3%
The Big Apple
Complete "Black Tuesday" and "Hunter Killer" on Veteran difficulty.
3/10/2012
6:04:42 AM
Ultra Rare 4.1%
The Best of the Best
Complete the campaign on Hardened or Veteran difficulty.
3/9/2012
10:08:16 AM
Ultra Rare 4.4%
Birdie
Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.
2/5/2012
12:03:57 PM
Rare 29.2%