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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.

Stand-in In Call of the Dead, send the crew to Paradise in solo or co-op.

Ensemble Cast In Call of the Dead, send the crew to Paradise in co-op.

Quiet on the Set In Call of the Dead, cut the lights on the Director.

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

Monkey See, Monkey Doom In Diner Turned, retrieve a chained Cymbal Monkey in a Public Match.

Polyarmory In Diner Turned, get a kill with each primary weapon in a Public Match.

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

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

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

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

Little Lost Girl In Origins, release Samantha.

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

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

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

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.

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.

Paranormal Progress In Mob of the Dead, open a door without spending points.

Easy Rhino In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.

Insert Coin Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.

The Collector Buy every weapon off the walls in a single Zombies game.

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

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

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

Time Travel Will Tell In Shangri-La, acquire the focusing stone.

One Small Hack for a Man... In Moon, hack something.

See Me, Stab Me, Heal Me Fire a Pack-a-Punched Ballistic Knife at a downed ally to revive them from a distance.

Monkey See, Monkey Don't In Shangri-La, get something from the monkeys.

Cryogenic Slumber Party In Moon, complete Richtofen's grand scheme.

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

Ready For Deployment Reach rank 10 in Combat Training.

Eaten by a Grue Play Zork on the terminal.

Just ask me nicely Break free from the torture chair.

Stardust Anvil Find the Stardust Anvil Relic.

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

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

Tower of Babble In TranZit, obey the voices.

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.

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

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

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

Mined Games In Buried, be their pawn.

When the Revolution Comes In Buried, return to processing.

Ectoplasmic Residue In Buried, acquire a perk for free.