Muggl-Marc

Shindo: Max Trust Earn maximum trust with Shindo.

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

Extract The Data... Get the data that Pritchard is after from within the Palisade Blade.

Expose The Truth! Decide what to do with the evidence you uncovered.

Man Slaughter Defeat Annuvin as Caddoc

The Barnard Award Bronze Score over 1500 points in a singleplayer game

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

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

Sack the Postman Post all 6 invitations for the party.

Respect for the dead Plundered all four resting places

Master Driver Complete all 80 Dares

One-Shot Master Get 50 one-shot bonuses in Campaign.

Situation Adventure Mode - Defeat all bosses as Caddoc

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

Raise the Not Quite Dead Adventure Mode - Cooperatively kill 50 levitating enemies

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

State-of-the-Art. Bang, Bang! Kill 10 enemies in a row with Sniper Rifle headshots

Played with fire Defeated the Keeper after changing his initial magic school to the fire type

Score Monger Complete 30 challenges in one Interval

Tier One In a group of 4 finish an Operation on Challenge with 5 directives enabled.

Worst Nightmare Master the Worst Nightmare Dark Knight track

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

Clean Sweep Complete the System Rift Jensen Story without killing anyone.

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

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Going Up… In The Darkest Shore, unlock the Ubersprengen.

A Just Cause Decide what to do with the Altered Biocell.

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

Ancient tool, new purpose Defeated the Judge with a weapon dropped by the Keeper

Let it Snow Receive the Extreme Environment Suit (XE Suit)

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

Back to the Past Completed "Back to the Past"

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

Murder He Wrote Find all pieces of evidence behind the Saridakis murder.

Dungeon Makeover Unlock 50% of Crucible content

Drilling for Justice Assemble the cryonucleation tunneller - the cryodrill

Hat Trick Kill 3 aliens with a single shot from the NX-1 Disruptor in Regular or Hardcore difficulty.

Too Hot to Handle Complete the server chamber area without being detected by any HeatEye cameras or enemies.

Knock Knock Get Slaw to open the security door within the Palisade Blade.

Dog Fight Kill a Gargoyle with the Vanguard in Awakening in Regular or Hardcore difficulty.

Mass Exodus Complete the final Ancestor encounter in Regular or Hardcore difficulty.

No More Mr. Nice Guy You pissed off everyone in Venezuela

A Criminal Past Complete A Criminal Past.

Don't Reach, Kid Find the basketball and put it in the hoop.

Eggstra Nemesis! Complete the Egg-Stra XP challenge and then activate a generator in the Nemesis DLC package.

Old West Legend Finish the game on very hard difficulty.

For Auld Lang Syne Stop Freeze and bring Boyle to justice

Stalact-tactician Takedown 2 enemies with one stalactite

Legend of the Dark Knight Complete all Dark Knight challenges

The Barnard Award Silver Score over 3000 points in a singleplayer game