Lewbotron

Hired Gun Complete 20 Contracts in MWZ

I Only Need a Hand or Twenty Elika saves you fewer than 20 times in the whole Epilogue.

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

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

Warhead Hunter Detonated all of the warheads in the Divide.

Stay in attack formation Win 10 Rounds of Battle Station

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

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

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

Der Electrician! Link all teleport pads before round 7. (Map Pack 3 only)

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

Full Master Earn all Gold Medals available in Mastery Challenge

Through the Dimensional Rift Defeated Omega.

Onwards! Get 30 kills with the DT-29

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

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

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

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

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

Write Off Kill 500 Enemies using an Insured Weapon in MWZ

Student of History Activate all Iron Lord Artifacts.

Up to the Challenge Completed any three Gun Runners' Arsenal (GRA) one star (*) Challenges.

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

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

The Boy Who Could Run Complete all Parkour Fever Challenges

If I Don't Do It, Who Will? Complete 7 Expert Missions.
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Apex Complete the "Vertigo" Special Ops mission on any difficulty.

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

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

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

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

Elevate Your Senses! Activate the Fly Trap. (Map Pack 3 only)

Team Player Revived KO'd allies 7 times in online matches!

Centennial Acquire 100% of the Stars

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

Combat Veteran Completed any three Gun Runners' Arsenal (GRA) two star (**) Challenges.

Firestarter Destroy all the Winter Shards and light all the fires in the Old Temple.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

First Blood Finish a round of Last Stand

Think She'll Notice? Destroy all of the cars in the mansion garage in 'Oligarch'

Swimming with the Fishes In Voyage of Despair, kill 50 zombies that are underwater in a single game

Together Till the End Be the last man standing

Skilled Adversary In IX have a Challenge banner with all 9 medallions

GD Parkour Instructor Complete all Parkour Fever Challenges at night

Have You Tried Turning it Off and On? Use a Shock Stick to disable an enemy Sentry Gun

Spliced Complete the "Wrath of the Machine" raid.

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

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

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

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament