I Don't Think They Exist
In TranZit, kill one of the denizens of the forest while it is latched onto you.
8/23/2014
1:48:20 PM
Rare 31.4%
Slippery When Undead
In Die Rise, kill 5 zombies with a single shot from the Sliquifier.
6/15/2014
4:15:03 AM
Ultra Rare 3.6%
The Lights Of Their Eyes
In Green Run, pacify at least 10 zombies with 1 EMP.
3/30/2014
11:32:47 AM
Rare 22.4%
Sally Likes Blood
Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.
3/14/2014
3:51:03 PM
Rare 34.9%
Sprinter
Reach the exfil chopper with 1:30 remaining on the clock in Regular or Hardcore difficulty.
2/7/2014
7:43:30 PM
Ultra Rare 4.6%
No Man Left
Escape with all four players in Regular or Hardcore difficulty.
2/7/2014
7:43:20 PM
Ultra Rare 4.4%
Easy Rhino
In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.
1/29/2014
1:54:25 PM
Ultra Rare 1.3%
Insert Coin
Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.
1/29/2014
1:40:43 PM
Rare 36.9%
