Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
1/16/2010
5:07:46 PM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
1/16/2010
4:46:12 PM
Rare 39.8%
Colonel Sanderson
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'.
1/16/2010
4:03:50 PM
Very Rare 6.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
1/16/2010
1:31:06 PM
Rare 45.1%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
1/16/2010
12:31:38 PM
Common 54.5%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
1/16/2010
12:22:16 PM
Common 57.6%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
1/16/2010
11:59:49 AM
Rare 21.2%
Purple Heart
When staring into the face of adversity, show courage and persevere.
12/17/2009
8:37:48 PM
Rare 28.3%
Bubble Boy
Block 1000 shots with Shield power in a single player campaign.
11/22/2009
11:39:15 AM
Rare 19.8%
Beatdown
Kill 50 enemies with melee attacks in a single player campaign.
11/15/2009
6:14:09 PM
Rare 22.3%
Gadget Freak
Purchase all the upgrades for one of your weapons in the single player campaign.
11/15/2009
1:51:59 PM
Rare 31.7%