ThaBrickWalker

Helipocalypse Destroy 6 helicopters in the "Kill Switch" Special Ops mission.

Get the Bozak Complete Bozak's challenges

Road to Mastery Unlock a Skill Challenge

Mastering the Darkness Unlocked all of Ardyn's abilities.

Flawless Clarity Complete a run in Lost Between Worlds in 15 minutes

Regime Change Defeat Samur in the Holt (Ancient Gods 1)

King of the Daemons Daemonified 100 enemies.

Skilled Negotiator Complete the Special Ops mission "Negotiator" on Veteran difficulty.

Survived Nightfall Kill the Breeder for the first time in Nightfall in Regular or Hardcore difficulty.

Add that one to the fossil record! Defeat a Bug Hive Lord.

Lord of War Collect all the upgrades for Sammy rifle and Stallion pistol in the SAM'S STORY chapter.

I said we’re CLOSED! In Nacht Der Untoten, do not let any zombies enter the building during the first 3 rounds.

Student of History Activate all Iron Lord Artifacts.

Dodge master Dodge all of the Blind One's throwing attacks in THE TWO COLONELS Chapter.

Quick Off Your Feet In Der Eisendrache, wall buy the BRM.

Sakura Completionist Gain all stars in 'Sakura'.

Bye-Bye, Dark Aether Help the lost scientist complete his experiment

Apex Completionist Gain all stars in 'Apex'

Phantom Exterminator Kill 5 Phantoms in one game in Nightfall in Regular or Hardcore difficulty.

Dialed In Customize your loadout in every Open Combat Mission

Your tax dollars at work Use a missile to take out a single enemy in 'Danger Close'

Back Stage Pass You gained access to Quinn's secret store.

Apex Predator You performed a takedown on Burke without being detected.

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

Toy seller Find 3 toys in New Game+ mode: teddy bear, sun and fish.

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

All of the Above You managed to save Dr. Kavanagh and all the prisoners, too.

The Learn'd Scholar When the proofs, the figures, were ranged in columns before me...

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

That Old Adage Apparently, your CASIE augmentation doesn't work on everyone...

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

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

Apex Complete the "Vertigo" Special Ops mission on any difficulty.

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

Never Forget You revisited the site where Belltower discovered and captured you.

Through the Dimensional Rift Defeated Omega.

It didn't SEE that coming! Defeat an Illuminate Great Eye.

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

Rush Hour Get a Double Kill with the RC-XD in Multiplayer

Floater Parachute off a Gantry Crane onto the roof of the Harbormaster's Building in 'Precious Cargo'

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

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

Digi-Me Start your Player Career with a Created Pro

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

Spliced Complete the "Wrath of the Machine" raid.

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.

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

First Blood Finish a round of Last Stand

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