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Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

High Roller Complete the "Iron Clad" Special Ops mission on Veteran difficulty.

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

Factory Zero You survived Hei Zhen Zhu and RBS using no Praxis kits, weapons, grenades or mines. Whoa.

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Heian Demon Completed all missions in "Darkness in the Capital" on Dream of the Demon.
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Celestial Illusion Capture a fantastical creature that floats through the sky.

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Moneybags Have 15000 credits in the bank in Outbreak.

The Bigger They Are... Destroy a total of 100 Custom Cyborgs during story mode.

All Star Get 100 Stars in S.T.A.R. Lab Mode

Around and Around We Go Perform every level interaction once

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

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

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Way of the Vanquisher Completed "Against All Comers" on Dream of the Demon or higher.

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

Veteran Collector Find all treasure within a single locale.

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

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

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

Speed Slayer Kill the Breeder in less than 5 minutes in Nightfall in Regular or Hardcore difficulty.

Mr. Climax Trigger all Climax Heat variations for Kiryu, Saejima, Akiyama, and Shinada.

Throttled Survival Kill the Breeder while using a Relic in Nightfall in Regular or Hardcore difficulty.

Tearing Away the Disguise Destroy all of the humanoid Dwarf Gekkos during story mode.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

Top Ten Rank in the top 10 at the Coliseum for the first time.

The Original Demon Completed all missions in "The First Samurai" on Dream of the Demon.
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Survived Mayday Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.

Targets Acquired Get past the first gate in Awakening in Regular or Hardcore difficulty.

Rambler Travel a total of 50000m.

Outstanding Observer Complete many requests for the Lynian Researcher.

Undiscovered Truths Find all the intel hidden in Nightfall.

Episode 5 Complete Finish Episode 5.

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

Burgertown Escort Service Rescue 1 survivor in Infection.

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Come On And ... Slam 10 zombies at once in Outbreak.

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

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

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

To Hell And Back Finish the game on Very Hard Mode with any character

Blood Donor Pass 5000 levels in Bloody Palace Mode

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Alright, Alright Survive until round 10 in Infection.

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

Survivor Survive until Round 25 in Outbreak.