Boneyard Workout
Complete Chapter 3 on any difficulty setting (Story Mode).
12/16/2009
4:47:27 PM
Rare 45.8%
Vehicular Carnage
Complete Chapter 2 on any difficulty setting (Story Mode).
12/16/2009
4:14:13 PM
Common 56.9%
Chinatown Rundown
Complete Chapter 1 on any difficulty setting (Story Mode).
12/16/2009
4:06:44 PM
Common 59.9%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/10/2009
5:47:31 AM
Common 54.5%
Ding Ding Ding Ding
Pick a letter that shows up 4 or more times in a puzzle
11/30/2009
7:32:33 AM
Common 84.1%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/10/2009
9:01:58 PM
Common 57.6%
Weapon of Minor Destruction
Kill no more than one zombie with a nuke. (Map Pack 2 only)
10/7/2009
5:56:20 AM
Very Rare 7.0%
Pack Addict!
Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)
8/19/2009
8:43:32 PM
Very Rare 5.4%
Der Electrician!
Link all teleport pads before round 7. (Map Pack 3 only)
8/16/2009
11:16:22 PM
Very Rare 7.6%
Soul Survivor
Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)
6/25/2009
7:30:33 PM
Ultra Rare 4.3%