Remember the Alamo
Severed: Kill 16 or more enemies in the final last stand combat sequence
6/5/2012
5:27:23 AM
Ultra Rare 2.5%
King of the Hill
Severed: Defend the quarry platform until the door unlocks
6/5/2012
2:43:50 AM
Ultra Rare 2.3%
Grind House
Severed: In the grinder room, cause an enemy to die in the grinders
6/4/2012
7:08:29 AM
Ultra Rare 1.6%
Vacuum Cleaner
Decompress 20 Necromorphs without getting sucked out yourself
6/2/2012
9:47:38 AM
Very Rare 6.9%
...And Stay Down
Kill 25 crawling enemies with Stomp (single player only)
5/31/2012
10:54:58 AM
Rare 14.5%
C-Section
Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
5/28/2012
2:39:13 PM
Rare 11.3%
Elevator Action
Knock off every Tripod during the Elevator Sequence
5/27/2012
11:37:51 AM
Very Rare 5.8%
The Sampler Platter
Kill a Necromorph with every Weapon in the game (single player only).
5/27/2012
10:01:34 AM
Very Rare 8.7%
Taste of your own Medicine
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
5/27/2012
3:10:44 AM
Rare 40.8%