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

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

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Kill or Be Killed Win while in the dying state.

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

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

A Baker's Dozen Run over and kill 13 enemies with the snowmobile in the "Black Ice" Special Ops mission.

Ice in Your Veins Complete the "Black Ice" Special Ops mission on Veteran difficulty.

Murder Spree Defeat the BSAA as a creature without dying once.

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

Not without a Fight Defeat Ustanak 20 times.

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

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

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Sleepless in Dulvey Complete Night Terror.

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

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

You're the Hero Now Complete Not a Hero on Professional difficulty.

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

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

Tower of Babble In TranZit, obey the voices.

Cheapskate Acquire the exo suit without spending any money in Outbreak.

Stuntman In Call of the Dead, make a zombie explode using the V-R11.

Protect and Serve Protect the BSAA without any of them getting hurt.

You Are S.O.L. Defeat your opponent 10 times with enemies you sent.

A New Blademaster Scored 1,000,000 or more points in Score Attack.

Surrounded on All Sides Send 2,000 enemies to your opponent's map.

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Come Up For Air Reach the top deck in Mayday in Regular or Hardcore difficulty.

Collector Acquire all items available in normal time attack

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

One Is Never Enough As Ustanak, capture a total of 50 humans.

Burgertown Escort Service Rescue 1 survivor in Infection.

Death From Below In Buried, drop the beat on 10 zombies in one game.

Alright, Alright Survive until round 10 in Infection.

Don't Tread on Me Complete the "Iron Clad" Special Ops mission on any difficulty.

Miracle Chef Feed Jack every type of food and drink in Jack's 55th Birthday.

Moneybags Have 15000 credits in the bank in Outbreak.

Stay Frosty Complete the "Arctic Recon" Special Ops mission on any difficulty.

Two Sides of the Same Coin Win 10 times.

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Survivor Survive until Round 25 in Outbreak.

Ethan Never Dies Complete Ethan Must Die.

Dogged Rider Earned the top ranking on all three Time Trial courses.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Best Birthday Ever Get an S Rank or higher on all stages in Jack's 55th Birthday.

Survived Nightfall Kill the Breeder for the first time in Nightfall in Regular or Hardcore difficulty.

Phantom Exterminator Kill 5 Phantoms in one game in Nightfall in Regular or Hardcore difficulty.