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Go for Gold! In Onslaught, acquire seven gold chalices

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

Full House Complete a Six-player game

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)

Skewer the Winged Beast In Under the Radar, have the SAM target itself and the helicopter

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

The Chosen Bun Win three games as the Hotdog Man character

Think She'll Notice? Destroy all of the cars in the mansion garage in 'Oligarch'

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

Have You Tried Turning it Off and On? Use a Shock Stick to disable an enemy Sentry Gun

Gran Turismo Rally Complete the "Gran Turismo Rally" Special Event.

Master Play fifteen games

Dream Race Win the ultimate three-way showdown between a Ford Mark IV Race Car, a Ferrari 330 P4 Race Car and a Jaguar XJ13 Race Car.

David vs Goliath In Checkmate, destroy the APC using an RC-XD

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament

Snow Angel Execute the forest sniper in 'Frozen Tundra' with a takedown

Hitchhiker Defuse the bomb on the truck in 'Gora Dam' while it is in motion

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

Salute Me Achieve the rank of Lieutenant.

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.

Is everyone here? Unlock all characters from the original roster.

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

Hey, Catch! Throw and hit an enemy directly with a Flammable Cannister then blow them up with it

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

The New Time-Master Beat all of Nefarious Tropy's times in Time Trial Mode.

Still counting Attain a Time Trial star rating of 50

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

Shot Blocked Shoot the gun out of the air in 'Flashpoint' before a terrorist catches it

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

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

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.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Chapter 2 Speedrun Complete a Speedrun of Chapter 2 below the target time.

Objective Driven Complete a total of 30 objectives across all matches

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

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

Chapter 4 Speedrun Complete a Speedrun of Chapter 4 below the target time.

I Call Shotgun! Drive a vehicle with a Sentry Gun on the back and have it kill 5 enemies

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.

Chapter 3 Speedrun Complete a Speedrun of Chapter 3 below the target time.

Helpful Stranger Revive a player from a different Squad in MWZ

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

Undiscovered Truths Find all the intel hidden in Nightfall.

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