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

Make a Wish Witness a meteor shower in Countdown mode.

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

Salute Me Achieve the rank of Lieutenant.

Velocity Completionist Gain all stars in 'Velocity'.

Kali Ma Complete Abaddon Asylum on any difficulty.

Evolution Completionist Gain all stars in 'Evolution'.

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

Never Speak of This Again Finish Extermination

Moocifer Create a Cow Demon

Total protonic reversal Complete Return to Hell on any difficulty.

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

Torque Completionist Gain all stars in 'Torque'.

Ninja Carnage Kill every enemy in an Ambush.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

None more hard Complete the Campaign on Nightmare difficulty.

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)

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

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

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

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

Got the Hang of It Now Earn 100 Tetris Line Clears.
0/100

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

Alright, Alright Survive until round 10 in Infection.

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

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.

Collector Loot 10 Superior or Custom items.

Survivor Survive until Round 25 in Outbreak.

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

Tough luck, chum! Complete Ragnarök - Part I on any difficulty.

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)

Call of the Void Complete Ragnarök - Part II on any difficulty.

Test Subjects Use sheep as test subjects in 6 levels

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

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

Rough Rider Destroy 15 vehicles during a single challenge

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

The circle is now complete Get to Rank 100

All Clear? Earn 10 All Clears.
0/10

Weekend Warrior Participate in a Weekly Ritual.

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Mozambique Here! Ping a Shotgun in Battle Royale.

A Cautionary Tale Collect all the warning signs

Expert Manager Reach B-Spec Level 40.

Splatter Fest Kill minions in 12 different rooms

Back-to-Back Hack Earn 50 Back-to-Backs.
0/50

Demo Pro Destroy 25 vehicles during a single challenge