Federation

His Full Attention Freedom Cry - Achieve 100% synchronization

Arms Dealer Buy all items from the Survival Weapon Armory.

Architect Share a Blueprint with your Co-Op partner.

Dropping Acid Dissolve 50 enemies with acid.

Anyone see that? Complete a predator encounter without ever being spotted in the Main Story

Sphinx' Riddle Complete all 40 of the Catwoman Riddler grid items

Perhaps sooner, Perhaps later Defeat the Joker

T-Bone: Friends in Need Complete Act 1

Overachiever Earn 48 stars in Special Ops Mission Mode.

Hide. Run. Survive. Complete the fifth mission without being killed by the Alien

Space Ace Shoot at least 70 targets during the ride to Tau Volantis.

Electric Lawnmower Kill 30 enemies using an electrified Ripper blade.

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Battering Ram Shield Bash 5 different thugs

Frequent Flyer Zip Kick 5 different thugs

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

Untouchable Complete the game in Impossible Mode.

Concordance Officer Collect all Trophies.

Free Flow Fifty Reach x50 Combo in the Main Story

All In Earn all available Trophies for Modern Warfare® 3.

New Shadow In 'The Savior', complete the mission without being spotted

T-Bone: No Easy Fix Complete Act 2

Hungry Reach the pump room of the Waystation without alerting any Feeders.

Campaign Silver Obtain 72 medals on the original Arkham City campaigns (as Batman)

T-Bone: Pest Control Complete Act 3

Just out of Reach Contact your team and escape Comms without being attacked by an android

Ghosts of the Past Face all of Carver’s demons by completing all Co-Op only optional missions.

Campaign Gold Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Outsmarted In singleplayer, get a quadruple kill with a single Frag Grenade

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Platinum Congratulations!

Queen Anne’s Revenge Playing as Blackbeard, perform an acrobatic kill and a gun kill in less than 10 seconds.

Mercy or Prudence? Complete the game without killing any humans

Elevator to the Gallows Kill a player using a lift that has been trapped with Booby Trap.

The Explorer Complete all optional missions.

Medic!  Revive your Co-Op partner 10 times.

Conscientious Killer Complete the campaign on any difficulty without shooting any civilians

We came, we saw... Clear the attic in Ghost House.

Weedkiller Kill 5 Cysts in the Biology Building with a single poison gas cloud.

Mind Your Step Navigate Reactor Maintenance without dying

Bomb Squad Defuse all bombs in 3 minutes or less

T-Bone: Looking For Trouble Complete all side investigations

A Few New Tricks Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge

T-Bone: Tag Team Complete 10 coop missions

Preemptive Strike Playing as The Orchid, block 10 abilities from opponents with Sabotage.

100 Times Too Many Get killed by the Alien 100 times

Survivor Complete the game on the hardest difficulty setting

T-Bone: Second Amendement Complete 20 Militia contracts

Sacred Land Playing as The Jaguar, be the highest scoring player of a Domination game session.