Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
11/18/2010
5:38:44 PM
Rare 21.2%
Weapon of Minor Destruction
Kill no more than one zombie with a nuke. (Map Pack 2 only)
11/17/2010
4:40:40 PM
Very Rare 7.0%
Fear the Reaper
Singleplayer: In Dorothy's a Bitch, destroy the entire AQ Camp with the AC-130
11/14/2010
3:03:12 AM
Very Rare 6.4%
Ruthless
Kill 15 enemies while mounted on a tank in 'Ring of Steel'.
11/4/2010
10:54:57 AM
Ultra Rare 3.6%
Timber!
Singleplayer: In Rescue the Rescuers, chop down 5 trees with the Minigun
11/1/2010
2:50:27 AM
Rare 10.2%
The Quiet Professional
Singleplayer: In Neptune's Net, eliminate 13 enemies without alerting anyone
11/1/2010
2:32:26 AM
Ultra Rare 4.6%
It Takes A Village...Out
Singleplayer: Destroy 30 buildings in Gunfighters Village
11/1/2010
1:37:17 AM
Very Rare 5.9%
Boss Batch 1
Kill the Colossus of Rhodes, the Dark Rider, and Theseus
10/29/2010
6:29:44 PM
Common 61.4%