I Don't Think They Exist
In TranZit, kill one of the denizens of the forest while it is latched onto you.
The Lights of Their Eyes
In Green Run, pacify at least 10 zombies with 1 EMP.
Dance On My Grave
In Green Run, acquire your Tombstone.
Undead Man's Party Bus
In TranZit, complete all additions to the bus in 1 game.
In TranZit, use an alternative mode of transportation.
You Have No Power Over Me
In TranZit, defeat "him" without being attacked by "him".
In Mob of the Dead, open a door without spending points.
In TranZit, buy 2 different perks before turning on the power.
In Buried, acquire a perk for free.
Feed the Beast
In Mob of the Dead, obtain Hell's Retriever.
In Buried, make a candy delivery.
No One Escapes Alive
In Mob of the Dead, execute the escape plan.
All Your Base
In Origins, activate all generators without allowing one to stop.
In Buried, rewrite history.
When the Revolution Comes
In Buried, return to processing.
In Mob of the Dead, survive an entire round on the bridge on round 15 or higher.
In Die Rise, fling 10 zombies in one game.
Not a Gold Digger
In Origins, share a weapon you dug up.
In Mob of the Dead, convert a weapon using a kit.
I'm My Own Best Friend
In Die Rise, revive yourself.
Slippery When Undead
In Die Rise, kill 5 zombies with a single shot from the Sliquifier.
Playing with Power
In Origins, build all elemental staffs in one game.
Mad Without Power
In Die Rise, reach round 10 before turning on the power.
I'm Your Huckleberry
In Buried, access all areas with the help of your new friend in one game.
Death From Below
In Buried, drop the beat on 10 zombies in one game.
Making the Rounds
In Mob of the Dead, complete the cycle 3 times.
Standard Equipment May Vary
In TranZit, acquire 4 different equippable items in 1 game.
Facing the Dragon
In Die Rise, face the dragon head-on before reaching round 2.
FSIRT Against the Wall
In Buried, purchase the LSAT off the wall and Pack-a-Punch it.
In Origins, complete all 4 Challenges in one game.
A Burst of Flavor
In Mob of the Dead, kill 10 zombies at once with a new beverage.
I’m on a Tank!
In Origins, ride the tank around the map without getting off.
Pop Goes the Weasel
In Mob of the Dead, break the cycle.
Master of Disguise
In Origins, use Zombie Blood to revive three players and activate a generator in one game.
Tower of Babble
In TranZit, obey the voices.
Kung Fu Grip
In Origins, free yourself and another from the Panzer Soldat’s claw in one game.
In Origins, wield all of the ultimate staffs in one game.
Little Lost Girl
In Origins, release Samantha.
Mazed and Confused
In Buried, survive an entire round within the maze on round 20 or higher.
Don't Fire Until You See
In TranZit, have all doors opened without being set on fire.
In Die Rise, use Pack-a-Punch and all perk machines in one game.
Awaken the Gazebo
In Buried, Pack-a-Punch a weapon during round 1 with no one using the bank or Weapon Locker.
Trapped in Time
In Mob of the Dead, use and upgrade all traps before round 10.
In Die Rise, be the architect of their instruction.
In Mob of the Dead, Brutus completes his patrol.
In Diner Turned, get a kill with each primary weapon in a Public Match.
Monkey See, Monkey Doom
In Diner Turned, retrieve a chained Cymbal Monkey in a Public Match.
I See Live People
In Diner Turned, kill the human while its decoy is in play in a Public Match.
In Buried, be their pawn.
Saving the Day...All Day
In Origins, revive another player four different ways in one game.