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

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

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

Mazed and Confused In Buried, survive an entire round within the maze on round 20 or higher.

Big Leagues Start the Campaign.

Just ask me nicely Break free from the torture chair.

Ray-gnarok In Alpha Omega, stun 10 zombies at once with the Ray Gun Mk. II-V

I'm Your Huckleberry In Buried, access all areas with the help of your new friend in one game.

Ray Gun Bonanza In Alpha Omega, construct all Ray Guns in a single match

Revisionist Historian In Buried, rewrite history.

Trial by Ordeal In Dead of the Night, defeat the evil within

Mega Bite In Dead of the Night, get bitten by a Crimson Nosferatu

Dust To Dust Complete the Main Quest in Ashes Of The Damned

Little Lost Girl In Origins, release Samantha.

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

Enforced Freedom Kill 100 Zombies with explosions from Fire Works

Decorated Veteran Earn 100 unique Medals across Multiplayer or Zombies

Survival Of The Fittest Reach Round 30 on a Survival Map

Corpse Aplenty Eliminate 10,000 Zombies

Scientific Breakthrough Equip 2 Minor Augments each on a Field Upgrade, Perk, and Ammo Mod

New Dynasty Enter Prestige in Black Ops 7

Master Of Arms Enter Weapon Prestige with any Weapon

Hoarder Complete all 6 Calling Card Challenges in any Zombies Category

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.

I Heard You Like Upgrades Fully upgrade Ol' Tessie

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

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.

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

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

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

When the Revolution Comes In Buried, return to processing.

Ectoplasmic Residue In Buried, acquire a perk for free.

Candygram In Buried, make a candy delivery.

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

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

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

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

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

Welcome to Brawlhalla! Play a matchmaking game.

The First Step Reach Level 55

Six Pack In Zombies, upgrade 6 Perk Skills to Tier III.

Greek Tragedy In Ancient Evil, finish what was started

Venerated Warrior In IX, defeat the most venerated opponent

Gift of Serket In IX, acquire Serket's Kiss