Graabaek

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

2-fer Using the EBR-14, kill 2 enemies with 1 bullet 5 times in 'Payload' without sounding the alarm

Undiscovered Truths Find all the intel hidden in Nightfall.

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

Invincible Get 99 or more extra lives.

Tag, You're it! Use the Spotter Scope to tag 60 enemies or items in Open Combat Missions

Torque Completionist Gain all stars in 'Torque'.

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Act 2 Cleaner Complete all Act 2 maps on Nightmare difficulty.

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

In Seventh Heaven Reached overall happiness of 77

Burgertown Escort Service Rescue 1 survivor in Infection.

Sébastien Loeb Rally Challenge Complete the "Sébastien Loeb Rally Challenge" Special Event.

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

Elevator Out of Order Reach the roof in 'Highrise' under 45 seconds

For Science! Researched all technologies at least once before the year 2005 in a single game

The third faction Rescue all the Buddies from their respective predicaments

Gotta Catch'em All Collect all secrets.

Dumb Luck Kill 5 enemies at once with explosive damage.

Chapter 6 Speedrun Complete a Speedrun of Chapter 6 below the target time.

Bike Win 5 Festival races using a Bike

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

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

Two's Company, Four's a Party Complete any Adventure level with 4 players.

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

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

Act 4 Cleaner Complete Act 4 on Nightmare difficulty

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

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

Mesa Dorado- Insane Complete Mesa Dorado on Insane.

I Challenge You to a Duel Complete a Medieval level using only Lou Don Jim

Skeet Shooter Shoot 25 Trip Mines out of the air.

The Boss Beats A Boss Defeat a boss using only President of Sony Computer Entertainment Worldwide Studios Shuhei Yoshida

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

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

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

It Used To Work Wreck 100 times
31/100

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

Street Fighter Complete all Dragon's Teeth Assignments

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)

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

Survivor Survive until Round 25 in Outbreak.

Alright, Alright Survive until round 10 in Infection.

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

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

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

By the Skin of Your Teeth Reach the finish line and win with 1% or less of your fuel remaining.

Terra Verte- Insane Complete Terra Verte on Insane.

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