Slickdan

Betrayal Kill an enemy from behind at close range while disguised by the Sleeper Agent

Excuse Me Kill an enemy hero with Brigitte's Shield Bash in Quick or Competitive Play.

Ruler of Everything Complete all activities.
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Has science gone too far? Get a kill using the HT-95 Levkov, XD-1 Accipiter, Rorsch Mk-1, and Schipunov 42

Smooth as Silk Kill an enemy with a scoped headshot while airborne as Widowmaker in Quick or Competitive Play.

Orc Slayer Kill 15000 Orcs With One Hero

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

A Joyful Nurse Revive 1996 players as Support in Multiplayer

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

Washington Raiders Complete the full Operation Dark Hours raid in a group of eight players.

It's Nice to Be Wanted Defeat each of Gotham's Most Wanted present during the KELVIN Incident

Element of Surprise Break Supercharged criminals 50 times using Elemental Effect weaknesses

To Know Your Enemy... Get 100 Kills while using Mutant Injections in Zombies

Their Own Worst Enemy Kill 2 enemies with a single use of Genji's Deflection in Quick or Competitive Play.

Overkill Obliteration - Kill all enemy snipers with explosives

First Blood Finish a round of Last Stand

Act 3 Veteran Complete all Act 3 maps on Veteran difficulty or higher.

Splash Damage Kill 5 AI with a single explosion

Big Spender Purchase the Damage upgrade for the Ion Spike.

Coolest Thing Ever Jumped over a Hextadon in the Deuce

Scorpio Kill every Scorpion in Rubi's Boneyard.

Hired Gun Complete 20 Contracts in MWZ

Overkill Completed all hunting secondary missions

The creator Finish Mission 4

Suicide mission Eliminate a guard with a booby trapped clone

Technical Wizardry Succeed at a cumulative total of 100 reversals (single player only).

Saving Private Reiner Obliteration - Don't kill any members of the Reiner family

Terror of the Ten Realms As Hela, land a 3-player KO streak in Yggsgard: Yggdrasill Path.

Hog Wild Knock 2 enemies to their deaths with one use of Roadhog's Whole Hog in Quick or Competitive Play.

Dose of his own medicine Kill a torturer in a duel

Pretentious Do not use any item during a mission

SuperTilt! Tilt 10 times in a row

Cash is King Achieve a balance of 30000 credits or more.

Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

Inevitable! Win 100 matches.
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2010 Hall of Fame Nominee Induct a Superstar into the HALL OF FAME.

A Real Beast Meet the president of Belobog Heavy Industries for the first time.

Shotgun Wallop! Kill a total of 200 Enemies using Rubi's Shotguns during acrobatic slow-mo.

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Beginner Maestro Clear all songs on Beginner.

Family Complete Phaethon's Story.

Yeah He's a Gold Digger In the Four Stores job, find a gold bar in the safe.

Full Marks Infiltration - Complete all the Challenges

Spider-Sense Tingling! As Spider-Man, detect an enemy with Spider-Sense and land a winning counterattack.

Homo Superior As Magneto, assist Mutant allies 10 times.

Fish A.I. On day 2 of the Watchdogs job, throw a loot bag into the sea, hoping fish move away as it gets near.

Write Off Kill 500 Enemies using an Insured Weapon in MWZ

Missed me! Defeat a boss on any difficulty level without taking damage

Frequent Flyer BASE jump and travel more than 150 m with your parachute

I never doubted you! Win 10 Rounds of Infiltration