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One Giant Leap In Moon, become trapped in the Receiving Area and free yourself through resurrection in co-op.

Big Bang Theory In Moon, gain sweet, sweet, revenge.

Saving the Day...All Day In Origins, revive another player four different ways in one game.

Master of Disguise In Origins, use Zombie Blood to revive three players and activate a generator in one game.

I See Live People In Diner Turned, kill the human while its decoy is in play in a Public Match.

Polyarmory 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’m on a Tank! In Origins, ride the tank around the map without getting off.

Happy Hour In TranZit, buy 2 different perks before turning on the power.

Don't Fire Until You See In TranZit, have all doors opened without being set on fire.

I'm My Own Best Friend In Die Rise, revive yourself.

Shafted In Die Rise, use Pack-a-Punch and all perk machines in one game.

Mad Without Power In Die Rise, reach round 10 before turning on the power.

High Maintenance In Die Rise, be the architect of their instruction.

Awaken the Gazebo In Buried, Pack-a-Punch a weapon during round 1 with no one using the bank or Weapon Locker.

Driven by Rage Take down Menendez and his operation.

Shifting Sands Gather intel on Raul Menendez from Mullah Rahmaan.

Gathering Storm Investigate the jungle facility.

Dance On My Grave In Green Run, acquire your Tombstone.

The Lights Of Their Eyes In Green Run, pacify at least 10 zombies with 1 EMP.

Tower of Babble In TranZit, obey the voices.

Just Gettin' Started Complete 1 challenge in any level.

No Man Left Behind Rescue Woods.

Gun Nut Complete a level with customized loadout.

Big Leagues Start the Campaign.

A Burst of Flavor In Mob of the Dead, kill 10 zombies at once with a new beverage.

Revisionist Historian In Buried, rewrite history.

Undead Man's Party Bus In TranZit, complete all additions to the bus in 1 game.

You Have No Power Over Me In TranZit, defeat "him" without being attacked by "him".

I Don't Think They Exist In TranZit, kill one of the denizens of the forest while it is latched onto you.

Standard Equipment May Vary In TranZit, acquire 4 different equippable items in 1 game.

Fuel Efficient In TranZit, use an alternative mode of transportation.

Slippery When Undead In Die Rise, kill 5 zombies with a single shot from the Sliquifier.

Vertigoner In Die Rise, fling 10 zombies in one game.

Facing the Dragon In Die Rise, face the dragon head-on before reaching round 2.

Pop Goes the Weasel In Mob of the Dead, break the cycle.

Full Lockdown In Mob of the Dead, Brutus completes his patrol.

GG Bridge In Mob of the Dead, survive an entire round on the bridge on round 15 or higher.

Acid Drip In Mob of the Dead, convert a weapon using a kit.

Making the Rounds In Mob of the Dead, complete the cycle 3 times.

Trapped in Time In Mob of the Dead, use and upgrade all traps before round 10.

Little Lost Girl In Origins, release Samantha.

Not a Gold Digger In Origins, share a weapon you dug up.

Master Wizard In Origins, wield all of the ultimate staffs in one game.

Playing with Power In Origins, build all elemental staffs in one game.

Overachiever In Origins, complete all 4 Challenges in one game.

All Your Base In Origins, activate all generators without allowing one to stop.

Kung Fu Grip In Origins, free yourself and another from the Panzer Soldat’s claw in one game.

No One Escapes Alive In Mob of the Dead, execute the escape plan.

Feed the Beast In Mob of the Dead, obtain Hell's Retriever.