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Justice Is Blind Kill 4 enemies who are stunned by a Flashbang Grenade in any Operation.

Ladies Night Beat an Echo Six Expansion Pack mission with the 3 female characters in your party.

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

Call me Terror-Billy! Beat the game on "Call me Terror-Billy!" difficulty or higher

Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Spiritually Attuned Make 100 Psychic Links (Share or Steal)

Got Your Back Revive your Co-Op partner 10 times.

Last Blood At the end of Guns of Stygia, kill all the enemies on the walkways before the explosions do

Don't burn yourself out Defeated the Keeper

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

Bike Win 5 Festival races using a Bike

Gravestone Kill 100 Zombies with a vehicle in a single deployment in MWZ

No Compromise, No Regrets You battled for Caracas

Gotta Catch'em All Collect all secrets.

Tailor-made Chose a perfectly fitting armor

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

Worth Every Penny Acquire 1000 credits in one month.

The Sound of One Hand Capping Complete ‘Got Your Back’ Operation with only a handgun.

Oh Yeah!!! Complete Nothing is as it Seems

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

Friends With Benefits Had relations higher than 90 with all factions in the Modern Era

Act 4 Cleaner Complete Act 4 on Nightmare difficulty

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

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

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

Head Trauma Use every type of melee weapon on a zombie

Bastardly Behavior Defeat Princess Kenny at the Town Square Amphitheater.

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

Off My Planet Recover the Hyperwave Beacon.

The Hero and the Madman You completed Mercenaries 2

Donut Mess with a Cop Unlock Officer Dick.

E Pluribus Unum Earn 20 team citations.

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

Two for One Complete Crime and Punishment in Multiplayer.

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

Loot and Pillage Collect $1,000,000

The New Fort Knox Gain 1500 gold bullion

High Score In Zombie Rush, obtain a Personal Score of 250,000

Coming In Hot On day 1 of the Watchdogs job, don't let the cops shoot and destroy the escape vehicle.

Alright, Alright Survive until round 10 in Infection.

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

You Can Pet The Dog Pet a Hellhound in MWZ

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

Going to the Vet Earn the "Veteran" Challenge Collection.
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Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

Survivor Survive until Round 25 in Outbreak.

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

Bird Brained Brainbug at least one penguin from each of the 7 penguin ranks, including Putzki in a single playthrough