Gravity is a Bitch!
Kill 30 enemies by using the grappling hook and making them fall to their death.
5/12/2012
8:46:59 AM
Rare 23.4%
Invincible Warrior
Kill 50 enemies in a row with inventory weapons without losing health.
5/8/2012
8:51:08 PM
Rare 10.4%
Out of the Frying Pan...
Complete "Persona Non Grata", "Turbulence", and "Back on the Grid" on Veteran difficulty.
4/23/2012
6:48:20 PM
Ultra Rare 3.3%
The Big Apple
Complete "Black Tuesday" and "Hunter Killer" on Veteran difficulty.
4/23/2012
5:54:03 PM
Ultra Rare 4.1%
Ice in Your Veins
Complete the "Black Ice" Special Ops mission on Veteran difficulty.
4/13/2012
11:57:18 AM
Ultra Rare 0.3%
Slippery Slope
Complete the "Black Ice" Special Ops mission on any difficulty.
4/13/2012
11:57:03 AM
Ultra Rare 2.1%
A Gun by Any Other Name
Kill an enemy with each weapon type including special weapons.
4/6/2012
4:06:35 PM
Rare 24.8%
Bloody Good Time
Kill 5 enemies with Blood Frenzy in a single campaign game or multiplayer match.
4/6/2012
4:04:20 PM
Common 51.5%
Chaos Averted
Kill an infected teammate with a headshot before they become a zombie in any mode.
4/6/2012
4:01:24 PM
Rare 26.7%