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Undiscovered Truths Find all the intel hidden in Nightfall.

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

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

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

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

Mountain legend Complete 30 MOUNTAIN STORIES in Alps

Wishing for the Best Complete the "Last Wish" Raid.

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)

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

You Can Pet The Dog Pet a Hellhound in MWZ

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

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

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

Alright, Alright Survive until round 10 in Infection.

Survivor Survive until Round 25 in Outbreak.

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

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

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

High Wire Act Kill 10 enemies while using a zipline

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

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

Perkaholic Have 9 perks active at the same time in MWZ

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

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

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

Tour guide Find 149 Points of Interest in Alps

No more secrets Find 110 Drop zones, 115 challenges and 149 Point of Interest in Alps

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Annihilation Get 100 Elite Zombie Eliminations in Zombies

Egg-stra Awakening! Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.

No Mo' Modi Get out of jail, but not for free

141 Ready Complete the campaign on Veteran

Nightfall Completionist Complete all challenges and kill the Breeder in Nightfall in Regular or Hardcore difficulty.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Turnabout is Fair Play Kill 50 Cryptids with the Venom-X weapon in Nightfall in Regular or Hardcore difficulty.

Dipped in Gold Purchase all Safehouse and Player Upgrades in Campaign

Not One Inch In Gorod Krovi, complete a Lockdown Event.

Upping the Ante Kill the Kraken using a Relic in Mayday in Regular or Hardcore difficulty.

Cyberized Research all Augments for 10 Items in Zombies

Back From The Dead Reclaim your gear from a Tombstone in MWZ

Hat Trick Kill 3 aliens with a single shot from the NX-1 Disruptor in Regular or Hardcore difficulty.

No Such Thing as Too Many Find and use all Armaments in Open Combat Missions

Mass Exodus Complete the final Ancestor encounter in Regular or Hardcore difficulty.

Dog Fight Kill a Gargoyle with the Vanguard in Awakening in Regular or Hardcore difficulty.

Case in Point Complete the Campaign on Veteran difficulty

Legendary legend! Reach the LEGEND rank in 6 different fields of expertise