Nelsonils

Sayōnara Reach Hokkaido Mastery Level 20.

Clean out the Castle Get 100% of the treasure in any floor

One Night in Bangkok Reach Bangkok Mastery Level 20.

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Keys to the City Reach Mumbai Mastery Level 20.

Break the Bank Complete "Golden Handshake."

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Marrakesh Escalated Complete Level 5 of an Escalation Contract set in Marrakesh.

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Mission Complete Reach Colorado Mastery Level 20.

Sayōnara Reach Hokkaido Mastery Level 20.

Colorado Escalated Complete Level 5 of an Escalation Contract set in Colorado.

Bangkok Escalated Complete Level 5 of an Escalation Contract set in Bangkok.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

Island and Chill Complete The Last Resort.

Hokkaido Escalated Complete Level 5 of an Escalation Contract set in Hokkaido.

Burgertown Escort Service Rescue 1 survivor in Infection.

Double Trouble Complete The Pen and the Sword in Multiplayer.

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

Come On And ... Slam 10 zombies at once in Outbreak.

Save the Poet Complete The Pen and the Sword in Single Player.

Honorary Member Reach Isle of Sgàil Mastery Level 20.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Alright, Alright Survive until round 10 in Infection.

Survivor Survive until Round 25 in Outbreak.

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Falcon and the Snowman Complete Crime and Punishment in Single Player.

Two for One Complete Crime and Punishment in Multiplayer.

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

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

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Under the Radar Select a Starting Location and use an Informant to smuggle an item into Milton-Fitzpatrick.

Extra Luggage Select a Starting Location and use an Informant to smuggle an item onto Haven Island.

Queen Firefly Kill 15 enemies with Marlene's assault rifle in one encounter in No Return
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Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

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

Lock, Stock, and Barrel Complete all Mission Stories in Golden Handshake.

May Your Death Be Swift Win a Daily Run of No Return on Grounded difficulty

This Make You All Nostalgic? Complete the Part I challenge track in No Return

No Floating Shoot all buoys in the water.

Full House Complete all Mission Stories for The Last Resort.

Biology Lesson Kill a Bloater with the pump shotgun as Bill in No Return

Forklift Tagging Shoot and hit the forklift driving around in the far section of the harbor.

Award-Core Assassinate target with the award and exit the mission via the main entrance, data core in hand.

Top of the Heap Reach New York Mastery Level 20.

I Would Do It All Over Again Complete the story in chronological order

The Gold Account Complete Golden Handshake on Master Difficulty.