For Close Encounters
Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.
12/7/2008
8:50:48 PM
Rare 22.1%
Team Player
Complete 5 missions with a full party of 8 in the Cooperative campaign.
12/6/2008
5:52:01 PM
Rare 10.9%
Tour of Duty
Complete one mission on each region in the Cooperative campaign.
12/6/2008
5:34:20 PM
Very Rare 7.4%
Specter Recon
Collect 50 pieces of gray tech in the Cooperative campaign.
12/6/2008
3:22:29 AM
Rare 15.6%
I See You
Kill 50 enemies through solid matter with the Auger in the single player Campaign.
Missing Timestamp
Rare 37.4%
Talk To The Hand
Use the Auger force barrier to stop 150 incoming enemy shots in the single player Campaign.
Missing Timestamp
Rare 38.5%