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Helpful Stranger Revive a player from a different Squad in MWZ

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

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

I kill dead people Killed 40 ghosts in the Ancient Labyrinth

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

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

Specialist Kill 100 enemies using katana special attacks in campaign mode

Undiscovered Truths Find all the intel hidden in Nightfall.

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

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

A Can Of Worms Play Trial of the Worm for the first time.

Demolition Expert In a Single Player game, destroy 6 or more trees with 1 explosive

He knows what they did last era Found all eight audio notes in the Ancient Labyrinth

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

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

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.

Good Listener Found 20 Portable Phonographs.
0/100

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

Burgertown Escort Service Rescue 1 survivor in Infection.

Making mountains out of molehills Kill 100,000 enemies.

Vulnerable As the Predator, knock down a Fireteam member while your energy is overloaded

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.

Act 4 Cleaner Complete Act 4 on Nightmare difficulty

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.

Donut Mess with a Cop Unlock Officer Dick.

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

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

Don't burn yourself out Defeated the Keeper

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

Going to the Vet Earn the "Veteran" Challenge Collection.
1/10

Distinguished Hunter Reach Player level 50
0/50

Tailor-made Chose a perfectly fitting armor

Shadow Warrior Complete the game on normal or higher difficulty setting

Head Hunter Defeat Xing on normal or higher difficulty setting

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

Party Animal Awarded for earning the maximum number of party power points.

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

Accessory All Areas Awarded for making every single available improvement to an accessory.

Survivor Survive until Round 25 in Outbreak.

You Can Pet The Dog Pet a Hellhound in MWZ

Alright, Alright Survive until round 10 in Infection.

Merciless Kill 50 crawling demons in campaign mode

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

Gabe Fan Collect all cassette tapes!

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

The epitome of Super Earth Complete all Trophies.

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer