ArchChimaira

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (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.

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

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

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)

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

Moneybags Have 15000 credits in the bank in Outbreak.

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

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

Wizard's Wireless Listener Collect half of all the Potterwatch passwords.

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

Combo Master Complete any Memory Sequence other than Memory Sequence 1 without losing your Score Combo once in Assassin's Creed® Chronicles: Russia.

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

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

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

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

Friendly Rivals Compare your ranking on any Challenge with a Friend on your Friends list.

Like A Shadow Achieve a Shadow Gold rating 30 times in Assassin's Creed® Chronicles: Russia.

Survived Mayday Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.

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

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

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.

Daily Prophet Reader Collect half of all the copies of the Daily Prophet.

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

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.

Shocking Electrocute 25 enemies in Assassin's Creed® Chronicles: Russia.

Undiscovered Truths Find all the intel hidden in Nightfall.

Burgertown Escort Service Rescue 1 survivor in Infection.

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

Ghost Train Complete Assassin's Creed® Chronicles: Russia Memory Sequence 4 without alerting the enemies.

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

Smoke Gets In Their Eyes Use the Smoke to pass by 100 enemies in Assassin's Creed® Chronicles: India.

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

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

Gone In A Flash Use Helix Blade on 25 enemies in Assassin's Creed® Chronicles: Russia.

Journeyman Treasure Hunter Loot 100 chests.

Thief Pickpocket or Loot 100 enemies without being seen in Assassin's Creed® Chronicles: India.

Between The Eyes Headshot 100 enemies in Assassin's Creed® Chronicles: Russia.

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

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Comprehensive Showing Post a result online for every Challenge for your Friends to compare.

Mercy Shooter Don't kill any enemies in the Orelov Sniping sections in Assassin's Creed® Chronicles: Russia Memory Sequence 7.

Quibbler Collector Collect half of all the copies of The Quibbler.

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

Defeated 1000 Enemies Defeat 1000 enemies in Story Mode.