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

Alright, Alright Survive until round 10 in Infection.

ARCHIVIST Collect all documents

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

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

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.

Survivor Survive until Round 25 in Outbreak.

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.

You Can Pet The Dog Pet a Hellhound in MWZ

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

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

AMG Completionist Gain all stars in 'AMG'.

Fivepeat This is your real power, child? Show me it's not luck by winning 5 Ranked Matches in a row!

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

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.

High Wire Act Kill 10 enemies while using a zipline

Annihilation Get 100 Elite Zombie Eliminations in Zombies

No Mo' Modi Get out of jail, but not for free

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

That's One Way to Do It... Destroy an airborne enemy helicopter with a Mortar Strike

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.

Bring it on! No comrade, this will not do! We must become stronger, for our fans! Fight 100 matches online!

Perkaholic Have 9 perks active at the same time in MWZ

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

King in the North Complete all Final Stand Assignments

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

Gun-kata Use pistols to kill four enemies in a row within five seconds

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)

LEGACY Complete all recordings

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

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.

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

In A World Without Gold Witness the end of a legend (complete Sequence 8, Memory 1)

Dipped in Gold Purchase all Safehouse and Player Upgrades in Campaign

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

141 Ready Complete the campaign on Veteran

All in Find the Morenia

Cyberized Research all Augments for 10 Items in Zombies

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

Flipper Flip the level 6 times in Protector mode

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

...Into the Fire Open the second sealed gate

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

Boosted! Hold Super Boost for 15 seconds in Protector mode