Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
1/6/2010
9:30:03 AM
Ultra Rare 3.1%
Off the Grid
Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty.
1/6/2010
6:06:28 AM
Ultra Rare 3.7%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
1/6/2010
6:06:19 AM
Very Rare 5.8%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
1/6/2010
5:42:52 AM
Rare 30.0%
Queen takes Rook
Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran Difficulty.
1/6/2010
5:21:56 AM
Ultra Rare 3.6%
One Bad Gato
Complete 'Blackcats' on Veteran difficulty. (Solo only)
1/5/2010
5:49:32 AM
Ultra Rare 3.9%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
1/4/2010
7:21:33 AM
Very Rare 9.7%
Homecoming
Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.
1/4/2010
6:20:54 AM
Ultra Rare 3.9%
Prisoner #627
Complete 'The Only Easy Day... Was Yesterday' and 'The Gulag' on Veteran Difficulty.
1/1/2010
11:53:09 PM
Ultra Rare 4.3%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
1/1/2010
7:59:43 AM
Rare 15.2%
Turistas
Complete 'Takedown' and 'The Hornet's Nest' on Veteran Difficulty.
12/31/2009
8:01:53 AM
Ultra Rare 4.7%
Colonel Sanderson
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'.
12/31/2009
7:56:08 AM
Very Rare 6.8%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
12/30/2009
9:41:24 PM
Ultra Rare 2.8%
First Day of School
Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
12/30/2009
6:48:38 PM
Very Rare 7.1%
"When It Rains, It Pours"
Complete 'Eviction' on Veteran difficulty. (Solo only)
12/24/2009
6:10:01 AM
Ultra Rare 2.9%
Shot in the Dark
Kill 10 enemies while the lights are out in the subway in 'Eviction'.
12/23/2009
4:31:54 AM
Rare 12.9%
Ruthless
Kill 15 enemies while mounted on a tank in 'Ring of Steel'.
12/21/2009
12:55:57 AM
Ultra Rare 3.6%
No Return
Complete 'Ring of Steel' on Veteran difficulty. (Solo only)
12/21/2009
12:32:58 AM
Ultra Rare 3.0%
Pack Addict!
Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)
12/20/2009
9:36:49 AM
Very Rare 5.4%
Throw a Six and a Half
On Hardened or Veteran difficulty, complete a level without dying. (Solo only)
12/19/2009
3:41:44 AM
Very Rare 5.6%
Firestarter
Complete a level using only the flamethrower. Melee, grenades & explosives are OK.
12/19/2009
2:36:52 AM
Very Rare 7.5%