Get Your Left Foot Wet
Complete a match in Campaign Co-Op mode. (Online co-op only)
3/4/2009
4:23:51 AM
Rare 12.6%
Get Your Right Foot Wet
Complete a match in Competitive Co-Op mode. (Online co-op only)
3/2/2009
3:46:23 PM
Rare 16.8%
Stalker
Collect 75% of the journal intelligence found throughout the game.
3/1/2009
6:07:53 AM
Rare 19.6%
Save Your Quarters
Clear Arcade Mode without using a single continue on Medium or higher difficulty.
2/26/2009
4:59:06 AM
Very Rare 6.4%
Complete: Nurse's Office
Complete Mission on any difficulty: Nurse's Office
2/26/2009
2:31:30 AM
Rare 40.2%
Historian
Collect 50% of the journal intelligence found throughout the game.
2/26/2009
1:29:33 AM
Rare 38.3%
