Scavenger
Collect all weapons, text logs and audio logs on Chapter 5: "Emergency Care"
5/5/2011
10:48:35 PM
Very Rare 5.1%
Quit Yacking And Start Shooting
Complete Chapter 4: "Rendezvous with Fate"
5/5/2011
10:20:13 PM
Rare 25.9%
Wise Guy
Under Arrest - Switch the camera off in the surveillance room before saving Ethan
5/4/2011
11:06:17 PM
Rare 35.3%
King of the Hill
Severed: Defend the quarry platform until the door unlocks
3/2/2011
10:35:09 PM
Ultra Rare 2.3%
Grind House
Severed: In the grinder room, cause an enemy to die in the grinders
3/2/2011
10:28:12 PM
Ultra Rare 1.6%
Remember the Alamo
Severed: Kill 16 or more enemies in the final last stand combat sequence
3/2/2011
4:19:24 AM
Ultra Rare 2.5%
My Boom Stick
Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)
2/23/2011
7:08:47 AM
Rare 10.3%