The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
11/13/2009
5:01:39 PM
Rare 30.0%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/10/2009
11:45:30 AM
Common 54.5%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/10/2009
11:19:06 AM
Common 57.6%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
9/7/2009
10:31:44 PM
Ultra Rare 4.7%
Der Electrician!
Link all teleport pads before round 7. (Map Pack 3 only)
8/7/2009
5:25:20 AM
Very Rare 7.6%
Once S'more into the Breach
Complete the 'Panic in Times Square' level.
7/19/2009
6:56:08 PM
Common 59.0%
The Flowers are Still Standing!
Complete the 'Welcome to the Hotel Sedgewick' level.
7/19/2009
6:01:58 PM
Common 70.3%
