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Speed Slayer Kill the Breeder in less than 5 minutes in Nightfall in Regular or Hardcore difficulty.

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

Helpful Stranger Revive a player from a different Squad in MWZ

Throttled Survival Kill the Breeder while using a Relic in Nightfall in Regular or Hardcore difficulty.

Gong like the Wind In IX, defeat all 8 challengers summoned by a gong within 5 minutes

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

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

Bulldozed In Ground Control, crush 25 enemies while driving the tank

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

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

Survived Mayday Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.

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

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

Targets Acquired Get past the first gate in Awakening in Regular or Hardcore difficulty.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

New Superpower Complete all China Rising Assignments

The Stick of Truth Equip a Legendary Bo (Claws of Awaji)

Undiscovered Truths Find all the intel hidden in Nightfall.

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

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

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

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

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

Burgertown Escort Service Rescue 1 survivor in Infection.

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

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

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

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

You Can Pet The Dog Pet a Hellhound in MWZ

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

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

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

Alright, Alright Survive until round 10 in Infection.

Survivor Survive until Round 25 in Outbreak.

Street Fighter Complete all Dragon's Teeth Assignments

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

High Wire Act Kill 10 enemies while using a zipline

Skill Swap Train Kinu and Kane

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

ARCHIVIST Collect all documents

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

Ran Escape Sumoto Castle (Claws of Awaji)

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

Perkaholic Have 9 perks active at the same time in MWZ

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

Dead-ball specialist Score a goal from a Free Kick

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

That's One Way to Do It... Destroy an airborne enemy helicopter with a Mortar Strike

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

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.