Shock Therapy
Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)
8/16/2012
5:41:37 PM
Rare 17.5%
C-Section
Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
8/16/2012
5:37:44 PM
Rare 11.3%
Epic Dismemberment
Dismember 2,500 Necromorph Limbs (single player only)
8/16/2012
5:11:07 PM
Rare 13.8%
The Sampler Platter
Kill a Necromorph with every Weapon in the game (single player only).
8/16/2012
3:50:55 PM
Very Rare 8.7%
Vacuum Cleaner
Decompress 20 Necromorphs without getting sucked out yourself
8/15/2012
3:54:34 AM
Very Rare 6.9%
Frozen in Time
Kill 50 Necromorphs while they are in Stasis (single player only)
8/14/2012
7:52:23 PM
Rare 28.0%
Taste of your own Medicine
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
8/14/2012
6:47:16 PM
Rare 40.8%
...And Stay Down
Kill 25 crawling enemies with Stomp (single player only)
8/14/2012
5:21:11 AM
Rare 14.5%
Going for Distance
Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface
8/14/2012
4:46:31 AM
Rare 30.7%