Rammerman

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.

Taking Flight In Gorod Krovi, ride a Dragon.

New Superpower Complete all China Rising Assignments

Never Speak of This Again Finish Extermination

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

Nemesis Meet Skullface

Mission Complete Reach Colorado Mastery Level 20.

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

Sayōnara Reach Hokkaido Mastery Level 20.

Moocifer Create a Cow Demon

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

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

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

Iron Mode Complete the game in Iron Mode.

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.

You know you're REALLY Insane, right? Complete the entire main campaign on Authentic Plus difficulty

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Undiscovered Truths Find all the intel hidden in Nightfall.

Burgertown Escort Service Rescue 1 survivor in Infection.

Just Like Old Times Dispatch the professor with a shot to the groin.

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

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

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

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

Hot Pants Complete I Now Know Why You Cry

He Talked Too Much Defeat Emerson Miller

Ladies Night Beat an Echo Six Expansion Pack mission with the 3 female characters in your party.

Honorary Member Reach Isle of Sgàil Mastery Level 20.

Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

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

Oh Yeah!!! Complete Nothing is as it Seems

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.

Street Fighter Complete all Dragon's Teeth Assignments

That Party was Ace Ace every Adventure level in The Journey Home.

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

Alright, Alright Survive until round 10 in Infection.

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

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Survivor Survive until Round 25 in Outbreak.

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Untouchable Complete SAM'S STORY on Normal or higher difficulty without dying in Batwing encounters.

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)