Completionist
Complete all Extinction challenges and escape in Regular or Hardcore difficulty.
12/13/2013
2:36:44 PM
Ultra Rare 1.6%
Made it Out Alive
Escape 1st time in Regular or Hardcore difficulty.
12/13/2013
2:36:35 PM
Very Rare 6.0%
No Man Left
Escape with all four players in Regular or Hardcore difficulty.
12/13/2013
2:36:26 PM
Ultra Rare 4.4%
They look like ants
Destroy all enemy ground targets and kill no allies with the rods.
11/24/2013
3:47:31 AM
Ultra Rare 0.5%
Piece of cake
Storm the common room and kill everyone without taking damage on veteran.
11/22/2013
1:27:31 PM
Ultra Rare 0.8%
Sleeping Beauty
Kill the sleeping guy in face down rappel section
11/19/2013
12:47:39 PM
Ultra Rare 4.6%
It Came from Below!
Kill 6 enemies with the knife while underwater in "Legends Never Die".
11/18/2013
4:16:08 PM
Ultra Rare 1.1%
Waste not
Every shot with the remote sniper hits a person or vehicle.
11/17/2013
12:33:09 PM
Ultra Rare 1.3%
The Ghost Killer
Confront Rorke (Complete "The Ghost Killer" on any difficulty.)
11/16/2013
4:47:50 PM
Rare 27.4%
LOKI
Commandeer the enemy space station. (Complete "Loki" on any difficulty.)
11/16/2013
4:33:32 PM
Rare 29.4%
Severed Ties
Destroy the Federation's satellite array (Complete "Severed Ties" on any difficulty.)
11/16/2013
4:25:44 PM
Rare 29.9%