ZX6_ninja

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

So Euro Enable European competition in the first season of Career

Master of the reliquary Gather all the fingers of Frankenstein

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

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

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.

Act IV Complete Act IV.

Street Fighter Complete all Dragon's Teeth Assignments

Alright, Alright Survive until round 10 in Infection.

ARCHIVIST Collect all documents

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

Rookie Finish the game on Easy difficulty.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

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

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.

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

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

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

Finale Unlocked the Ending Movie

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

Troglodyte Kill all scientists with head shots in ‘Self Destructive’ Operation.

No Goal for You! Goal Line Clearance

Flying Knives Kill 10 enemies with throwing knives.

AMG Completionist Gain all stars in 'AMG'.

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

Burning times Complete a level on Master difficulty without using bombs, overdrive or boost with a custom ship

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Fallen Eagle Kill 10 eagles.

Going Ballistic Kill 10 enemies with Ballistic Knife melee attack in ‘Rocket's Red Glare’ Operation.

Comeback Kid Win after being down 3 goals in the 2nd half in a game vs. the CPU

Tour guide Find 149 Points of Interest in Alps

No more secrets Find 110 Drop zones, 115 challenges and 149 Point of Interest in Alps

Muppet Mastery Complete The Muppet pack's story

Egg-stra Awakening! Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.

Turnabout is Fair Play Kill 50 Cryptids with the Venom-X weapon in Nightfall in Regular or Hardcore difficulty.

Nightfall Completionist Complete all challenges and kill the Breeder in Nightfall in Regular or Hardcore difficulty.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

Last Gasp Goal Score in the 89th minute

King in the North Complete all Final Stand Assignments

Master Negotiator Sell a player by getting your counter offer accepted by the CPU

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

A Man Down Win a game when down one man

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

LEGACY Complete all recordings

Youth is Served Sign a player to your youth squad in Career Mode

Right on Time Earned Gold in all Time Rallies in Mission Challenge

Not One Inch In Gorod Krovi, complete a Lockdown Event.

Upping the Ante Kill the Kraken using a Relic in Mayday in Regular or Hardcore difficulty.