GOBGoat

Evolution Completionist Gain all stars in 'Evolution'.

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

Chapter 3 Speedrun Complete a Speedrun of Chapter 3 below the target time.

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

… and you shall find Find and unlock 110 Drop Zones in Alps

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

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

Undiscovered Truths Find all the intel hidden in Nightfall.

The Spider's web Defeat 50 enemies using the Amazing Charge Attack

Burgertown Escort Service Rescue 1 survivor in Infection.

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

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

Master of the reliquary Gather all the fingers of Frankenstein

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

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

Torque Completionist Gain all stars in 'Torque'.

Untouchable Defeat any boss without taking damage (General)

A Time of Wood and Stone Gathered the lost lore of Cadash Thaig ("Witch Hunt" downloadable content)

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

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

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

Head Trauma Use every type of melee weapon on a zombie

Not so pretty boy Beat Khan in his One-on-One

Mountain legend Complete 30 MOUNTAIN STORIES in Alps

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

You Can Pet The Dog Pet a Hellhound in MWZ

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

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

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

Street Fighter Complete all Dragon's Teeth Assignments

Multiplicitous In Zombie Rush, get your score multiplier up to 100

Survivor Survive until Round 25 in Outbreak.

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

Alright, Alright Survive until round 10 in Infection.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Loyal Customer Purchased all upgrades in the Motor Forge

All in Find the Morenia

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

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

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

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

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

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

Tumbler Perform an impressive Barrel Roll

Quill Tosser Killed a Tollusk using only Ground Urchins.

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

Wander and the Forbidden Clear the game in hard difficulty

Alpha Protocol Complete Operation Desert Spear.