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Endurance Racer Drove for a total of 24 hours

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.

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

You Can Pet The Dog Pet a Hellhound in MWZ

Route 66 Racer Drove for a total of 2,451 miles (approx. 3,945km), the length of the USA's famous Route 66

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

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)

Super-sleuth With Snowy, find all the buried objects in "Tintin and Haddock" mode!

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

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

Aviation ace Finish every level of the three types of PLANE challenges!

Perkaholic Have 9 perks active at the same time in MWZ

It Ain't Easy Being Green Attack all 64 Kerotans
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Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

It's Duck Season Attack all 64 GA-KOs
0/64

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

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

Master treasure hunter Find all the TREASURES in "Tintin and Haddock" mode!

Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

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

141 Ready Complete the campaign on Veteran

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

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

Finale Unlocked the Ending Movie

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

Going Up… In The Darkest Shore, unlock the Ubersprengen.

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

Sidecar gold medal Get gold in all the SIDECAR challenges!

Once in a lifetime Score as the Goalkeeper in any match

Live Die Reload Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 2)

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

Gastronome Achieve a 100% for your Food Collection

Game Over Beat Horde Mode

Cyberized Research all Augments for 10 Items in Zombies

Going Down! Destroy the elevator bringing reinforcements in the Istanbul tunnels

A Snake Has Many Skins Obtain every camouflage uniform and face paint

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

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

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

Bulletproof Find all Plate Carrier Upgrades in Open Combat Missions

Stayin' Alive! Be the last player alive in your squad.

Case in Point Complete the Campaign on Veteran difficulty

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

Gearhead Collect all Weapons and Field Upgrades from Supply Boxes in Open Combat Missions