I Wanna Rock
Complete a song with any instrument on any difficulty in local Quickplay or Career.
8/4/2010
2:55:16 PM
Common 87.9%
The Basics
Complete one of the missions you receive in the mission log.
6/21/2010
11:42:15 PM
Common 89.1%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
6/9/2010
6:26:57 PM
Rare 17.0%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
6/9/2010
6:16:13 PM
Very Rare 5.6%
Look Ma Two Hands
Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
5/29/2010
10:14:12 PM
Rare 12.6%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
5/29/2010
8:48:11 PM
Rare 21.2%
Colonel Sanderson
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'.
5/29/2010
8:35:08 PM
Very Rare 6.8%
Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
5/29/2010
7:49:38 PM
Ultra Rare 3.1%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
5/29/2010
7:31:08 PM
Ultra Rare 2.8%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
5/29/2010
6:18:43 PM
Rare 25.3%
So Close...
The Old Warehouse - Reach the end with all characters... and fail
4/2/2010
3:27:01 PM
Very Rare 8.5%
