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The Cold, the Bad and the Ugly Stop Harley Quinn's spectacular siege at S.T.A.R. Labs

Cleanest Hands You completed The Brigmore Witches without killing anyone

Peril on Gorgon Completed Peril on Gorgon on any difficulty.

The Guileless Tiger Tested Xu Chu's worthiness to be Dian Wei's successor.

Come Up For Air Reach the top deck in Mayday in Regular or Hardcore difficulty.

Denied Defeat a boss before it can escape.

Avast Ye! Repelled Gan Ning.

The Eagle has Landers In Ascension, escape on all three lunar landers.

Do you even Exo? Exo Melee kill 10 zombies in 30 seconds in Outbreak.

Art of Swordsmanship Defeated 100 enemies using long swords.
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Master of the Dark Arts Acquire the Ritualist Archetype

Required Reading Collect all physical Codex pages in a single save slot (Ancient Gods 1)

Cheapskate Acquire the exo suit without spending any money in Outbreak.

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

EMPressive... Complete the "Kill Switch" Special Ops mission on Veteran difficulty.

Handle with Care Complete the "Special Delivery" Special Ops mission on any difficulty.

Beware of Fire! Struck 3 enemies with a single Oil Pot explosion in Yuan City.

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

Nemesis Meet Skullface

Lucky Charm Bracelet Acquire all Support Runes in a single save slot (Ancient Gods 1)

Crystal Spelunker Complete World Spear (Ancient Gods 2)

Pure Lunacy Complete Dead Space™ 3 Awakened in Pure Survival Mode

Not on My Watch Rescue all the hostages in the Special Ops mission "Negotiator."

Full Master Earn all Gold Medals available in Mastery Challenge

Sharpen Your Sword Crossed swords with Taishi Ci.

Death From Above In Der Eisendrache, kill a zombie while being flung by a Wundersphere.

That’s a lot of Jigawatts! In Der Eisendrache, electrocute 121 zombies.

The Boy Who Could Run Complete all Parkour Fever Challenges

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

Switcheroo Complete "Fox Hunt"

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

Cross the Threshold Complete Reclaimed Earth (Ancient Gods 2)

Tougher Than Nails Acquire all Sentinel Hammer upgrades (Ancient Gods 2)

Finally Home Complete every Adventure level in The Journey Home.

Now Who's the Idiot? Finish The Artifact

The Sage Pauses when Guests Call Swore oaths with all of the new allies in Battle of Zhongyuan.
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Stomp-A-Mole Eject 10 Abas from the ground

Siege the Day Complete Immora (Ancient Gods 2)

One Big Happy Family Complete "Face 2 Face"

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

Not a Scratch Finish with your tank at full health in the "Iron Clad" Special Ops mission.

Fireship Attack Sank all enemy ships by sending out fireships in "A Dark Tide Rolls In."

Vive la Résistance Complete all Connie Resistance Missions

First Blood Finish a round of Last Stand

Siege Complete the "Light 'Em Up" Special Ops mission on any difficulty.

Ash the Leech Gain 10 health chunks using Heroic Gifts

Hypersonic Complete all Secret Encounters in a single save slot (Ancient Gods 1)

Egg-stra XP! Complete the Egg-Stra XP challenge and then destroy a hive in the Onslaught DLC package.

Masochist Lose 20 health chunks from using Heroic Gifts

Silence is Golden You completed The Brigmore Witches without alerting anyone