Right in the Grape...
Singleplayer: Get 7 headshots in a row with any weapon except the long range sniper rifle.
5/24/2016
1:36:10 AM
Rare 11.9%
FSIRT Against the Wall
In Buried, purchase the LSAT off the wall and Pack-a-Punch it.
9/7/2014
7:48:19 PM
Ultra Rare 2.1%
Death From Below
In Buried, drop the beat on 10 zombies in one game.
8/1/2013
8:00:58 PM
Ultra Rare 3.6%
Slippery When Undead
In Die Rise, kill 5 zombies with a single shot from the Sliquifier.
7/27/2013
4:05:14 PM
Ultra Rare 3.6%
GG Bridge
In Mob of the Dead, survive an entire round on the bridge on round 15 or higher.
7/17/2013
6:13:31 PM
Ultra Rare 4.3%
Party Animal
Win 10 multiplayer games while playing in Party Games playlists.
6/10/2013
5:38:37 PM
Rare 17.7%
Happy Hour
In TranZit, buy 2 different perks before turning on the power.
6/5/2013
10:23:45 PM
Very Rare 5.9%
Paranormal Progress
In Mob of the Dead, open a door without spending points.
5/17/2013
12:43:58 AM
Very Rare 7.8%