Wet Work
Take back New York Harbor. Complete "Hunter Killer" on any difficulty.
11/17/2011
10:20:52 PM
Common 50.7%
Too Big to Fail
Destroy the Jamming Tower. Complete "Black Tuesday" on any difficulty.
11/17/2011
10:09:40 PM
Common 53.7%
Back in the Fight
Start the Single Player Campaign on any difficulty.
11/17/2011
9:53:05 PM
Common 62.2%
Zomb Disposal
In Shangri-La, dispose of a Napalm zombie without it harming any players.
8/20/2011
11:50:28 PM
Ultra Rare 3.0%
Monkey See, Monkey Don't
In Shangri-La, get something from the monkeys.
8/20/2011
11:23:56 PM
Ultra Rare 4.3%
Blinded By the Fright
In Shangri-La, kill a Shrieker zombie while blinded by it.
8/20/2011
12:53:23 AM
Ultra Rare 3.4%
What Does This Button Do??
Complete Arcade Ladder without blocking (allowed to continue)
8/14/2011
12:20:56 AM
Rare 10.7%
Quiet on the Set
In Call of the Dead, cut the lights on the Director.
7/15/2011
1:32:21 AM
Ultra Rare 1.9%
Weapons Specialist
Fully Upgrade All Stats Of Any Weapon In Campaign Mode
6/25/2011
9:09:31 PM
Rare 42.2%
Trendsetter
Place a sticker or a decoration on another player's sackperson
6/4/2011
3:46:03 PM
Rare 37.6%