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They Came From the Lake Liquidate the Infestation at the Lake

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

Rapid Reflexes Get 5 Headshot Kills during a single use of the Adrenaline Stim in Campaign

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

Demons on a Plane Obliterate the Infestation at the Crash

The Flying Dead Abolish the Infestation on the Mountain

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

Helpful Stranger Revive a player from a different Squad in MWZ

Gong like the Wind In IX, defeat all 8 challengers summoned by a gong within 5 minutes

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

Rookie of the Year Earn a B Rank in the Trial of Initiation

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

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

Bulldozed In Ground Control, crush 25 enemies while driving the tank

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

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

Taking Flight In Gorod Krovi, ride a Dragon.

Top Photographer Took 100 or more Scapes shots or race photos

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

Never Speak of This Again Finish Extermination

Pacesetter Completionist Gain all stars in 'Pacesetter'.

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

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

Salute Me Achieve the rank of Lieutenant.

Moocifer Create a Cow Demon

The Stick of Truth Equip a Legendary Bo (Claws of Awaji)

Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

Der Meisterbogenschuetze In Der Eisendrache, obtain all of the ancient bows.

Undiscovered Truths Find all the intel hidden in Nightfall.

Gravestone Kill 100 Zombies with a vehicle in a single deployment in MWZ

Decent Drifter Earned a total of 100,000 Drift Points

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

All in Find the Morenia

Velocity Completionist Gain all stars in 'Velocity'.

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

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.

Evolution Completionist Gain all stars in 'Evolution'.

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

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

Career 75% Complete 23 different championships in your career

High Score In Zombie Rush, obtain a Personal Score of 250,000

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

You Can Pet The Dog Pet a Hellhound in MWZ

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

Super Rallier Earned Gold in all Special Rallies in Mission Challenge

Gotta Catch'em All Collect all secrets.