SunKing

Island and Chill Complete The Last Resort.

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

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.

I Call Shotgun! Drive a vehicle with a Sentry Gun on the back and have it kill 5 enemies

Give Them Something to Believe Complete New Game Plus

Helpful Stranger Revive a player from a different Squad in MWZ

Undiscovered Truths Find all the intel hidden in Nightfall.

Double Trouble Complete The Pen and the Sword in Multiplayer.

Burgertown Escort Service Rescue 1 survivor in Infection.

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

Just Like Old Times Dispatch the professor with a shot to the groin.

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

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

The Force Complete Zone 18 without upgrading weapons.

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

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

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

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

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

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

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

Honorary Member Reach Isle of Sgàil Mastery Level 20.

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

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

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

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

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

A New Hope See all of the endings of Ninja
Scroll of the Demon Blade.

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

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

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

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

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

Street Fighter Complete all Dragon's Teeth Assignments

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Head Trauma Use every type of melee weapon on a zombie

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

Alright, Alright Survive until round 10 in Infection.

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

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

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

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

Two for One Complete Crime and Punishment in Multiplayer.

Survivor Survive until Round 25 in Outbreak.

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

Untouchable Complete SAM'S STORY on Normal or higher difficulty without dying in Batwing encounters.

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

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

You Can Pet The Dog Pet a Hellhound in MWZ