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Tower of Babble In TranZit, obey the voices.

Paranormal Progress In Mob of the Dead, open a door without spending points.

Carrier Load up Type A vehicle in the trunk of your truck and drive it for 200 meters in total

Caravan Load up two trucks and winch them together to reach Lumber Mill simultaneously

Family Reunion There are two futures.

Blinded By the Fright In Shangri-La, kill a Shrieker zombie while blinded by it.

Ultimate Sacrifice Only one can survive.

Freakshow Survive Horde Assault for 15 minutes

My Only Love Finish a level using only one vehicle in Single Player mode

Backroom Deal Open the backroom in Onslaught

No One Escapes Alive In Mob of the Dead, execute the escape plan.

Second (the) Best Earn your first Silver Medal in a Challenge

Downhill Complete the "Downhill" in Hardcore mode

Crossing Complete the "Crossing" in Hardcore mode

Climber Reach the top of any 2 of 3 mountains in the "Island" in one game

Hammer Time Lose 50,000ml of blood using the hammer.

Size Does Matter Fill a particular Lumber Mill by delivering Long Logs only

More Freakers, More Problems Defeat an increased size horde in Horde Assault

Stuntman In Call of the Dead, make a zombie explode using the V-R11.

Deluge Complete the "Deluge" in Hardcore mode

Old Still Good Fill a particular Lumber Mill by using Type B-130 only

Forester Finish a level without using the Navigation map in Single Player mode

Unstoppable Load up a truck and drive to an Lumber Mill without releasing accelerator

How Long Can You Live Without A Brain? Perform a brain transplant in under 1 minute.

Blind Date Successfully rescue HVI.

Anthropologist Find and visit 2 fluorescent flower meadows in the "Downhill" at night in one game

Never-Ending Game Play 125 rounds of Gauntlet.

Spaaaaaaaaace Go where no surgeon has gone before.

One More Ride Complete the story of Days Gone in New Game+

Back in Time Use a future weapon in the past.

In Space, No One Can Hear You Bleed Perform a heart transplant in space.

Making the Rounds In Mob of the Dead, complete the cycle 3 times.

Ship Shape Reinforcements on the way.

Logan's Shadow Kill an enemy with every type of ammo from a mysterious weapon earned in New Game+

Old Fashioned Complete "Pyrrhic Victory", "Old Wounds", "Time And Fate", and "Suffer With Me" in Veteran.

I Should Never Have Doubted Myself Get an A++ rating on a procedure.

Vertigoner In Die Rise, fling 10 zombies in one game.

Small Consolation In Shangri-La, use the 31-79 JGb215 on each type of zombie.

Mad Without Power In Die Rise, reach round 10 before turning on the power.

GG Bridge In Mob of the Dead, survive an entire round on the bridge on round 15 or higher.

Black Ops II Master Complete the campaign on Hardened or Veteran difficulty.

Slippery When Undead In Die Rise, kill 5 zombies with a single shot from the Sliquifier.

And They Said It Was Impossible! Complete a procedure after being drugged and electrocuted. (Must be afflicted within 20 secs)

I'm My Own Best Friend In Die Rise, revive yourself.

Futurist Complete all future levels in veteran.

Fully Armed and Operational In Moon, acquire 3 pack-a-punched weapons at the same time.

Revisionist Historian In Buried, rewrite history.

You Can't Handle The Tooth! Complete the tooth transplant only removing the rotten teeth.

Master Logger Unlock all trophies

Acid Drip In Mob of the Dead, convert a weapon using a kit.