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

Ground Control In Moon, prevent each excavator from breaching the base in one game.

Fully Armed and Operational In Moon, acquire 3 pack-a-punched weapons at the same time.

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

Perks in Spaaaaace! In Moon, purchase every perk in one game.

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

Ready For Deployment Reach rank 10 in Combat Training.

Space Race In Ascension, Pack-a-Punch a weapon before round 8.

Chimp on the barbie In Ascension, kill a space monkey with a fire trap.

They are going THROUGH! In Ascension, kill at least 5 zombies with 1 Gersh Device.

The eagle has landers In Ascension, escape on all 3 lunar landers.

Sally Likes Blood Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

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

Small Consolation In Shangri-La, use the 31-79 JGb215 on each type of zombie.

Sacrificial Lamb Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.

Hands Off the Merchandise Kill the Pentagon thief before it can steal your load-out.

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.

Eaten by a Grue Play Zork on the terminal.

Zomb Disposal In Shangri-La, dispose of a Napalm zombie without it harming any players.

Blinded By the Fright In Shangri-La, kill a Shrieker zombie while blinded by it.

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

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

What Happens in Colossus... Find the Karma weapon.

Waterlogged Gather information on Raul Menendez' suspected terrorist plot.

Driven by Rage Take down Menendez and his operation.

Shifting Sands Gather intel on Raul Menendez from Mullah Rahmaan.

Just Gettin' Started Complete 1 challenge in any level.

Gathering Storm Investigate the jungle facility.

No Man Left Behind Rescue Woods.

Gun Nut Complete a level with customized loadout.

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.

Mined Games In Buried, be their pawn.

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

Big Leagues Start the Campaign.

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

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

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

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

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

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.

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

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

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.

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

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