No Mistakes Allowed
Streak through the entirety of a song in Quickplay or Career
1/24/2010
3:12:13 PM
Rare 26.2%
Senior Commander
Earn 5 or more Stars on a song in Career or Quickplay
1/23/2010
11:27:03 AM
Common 69.5%
Look Ma Two Hands
Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
12/20/2009
3:14:47 PM
Rare 12.6%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
12/20/2009
1:48:22 PM
Rare 21.2%
Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
12/20/2009
1:44:25 PM
Ultra Rare 3.1%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
12/20/2009
11:55:56 AM
Ultra Rare 2.8%
Off the Grid
Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty.
12/20/2009
11:23:53 AM
Ultra Rare 3.7%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
12/20/2009
11:23:48 AM
Very Rare 5.8%
Queen takes Rook
Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran Difficulty.
12/19/2009
4:36:18 PM
Ultra Rare 3.6%
Homecoming
Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.
12/19/2009
3:17:52 PM
Ultra Rare 3.9%
Ends Justify the Means
Complete 'Contingency' on Veteran Difficulty
12/19/2009
2:08:06 PM
Ultra Rare 4.0%