Operation Adder
Unlock and finish the 2nd mission of the Campaign on Normal, Hard, or Elite.
6/5/2009
5:55:30 AM
Common 67.2%
Operation Ghost Rider
Finish the 1st mission of the Campaign on Normal, Hard, or Elite difficulty setting.
6/2/2009
11:39:17 AM
Common 81.0%
The Basics
Complete one of the missions you receive in the mission log.
12/26/2008
9:05:11 PM
Common 89.1%