Gutsy Call
Take an Online Head to Head Ranked match to extra time playing as a weaker team than your opponent
2/3/2010
3:32:46 PM
Rare 11.5%
Good Form
Play 5 consecutive Online Head to Head Ranked matches without losing
2/2/2010
9:42:28 PM
Rare 12.0%
Experimental
Play 5 consecutive Online Head to Head Ranked matches using a different team
2/2/2010
7:40:50 PM
Rare 10.8%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
12/29/2009
1:05:40 PM
Rare 33.0%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
12/28/2009
5:25:07 PM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/28/2009
5:12:16 PM
Rare 39.8%