Koraf

My Kind of Crazy Finish a mission on Insane Difficulty.

Objectively Good Capture an objective, build both fortifications and unlock both perks

Ladder Master Complete Arcade Ladder on max difficulty without using a continue

School's Out Forever Saw every possible School Mode ending

Trial by Fire+Lightning Beat all the Trials in the Main Campaign on Hard difficulty.

Power Struggle In Classified, reach round 20 without turning on the power

Abandon Ship In Voyage of Despair, complete the Trial

Legendary Celestial Dragon Caught a Jetragon

Seriously, You Shouldn't Have Collected every possible present

Trial by Fire+Lightning+Death Beat all the Trials in the Main Campaign on Bananas difficulty.

The Doctor is In Use PhD Slider to fall 10 feet and kill 10 zombies at once

The Highest Office In Classified, reach round 20 without using an elevator

Terrible Terrible Damage! Inflict over 20,000,000 total damage.

Subzero Hero Obtain clothing to get a survivable temperature rating of -22°C / -7°F.

Mr. Congeniality Filled in every page of every character's Report Card

Trying to Get "Trial and Error"? Kill yourself 1000 times.

Most Escape Alive In Blood of the Dead, escape

Collector Collect all Marks of the Gods (Single Player only)

Oh, My Bad Kill your friends 1000 times.

You Found Me! Discover and fight Hidden Kombatant 1 in Arcade Ladder

Sellout Spent 250,000 fans - any mode

PLANET CREATOR Create a custom planet in the level editor.

Wizard's Diploma Beat the five base Challenges on Normal difficulty.

Zombie Fanatic In Blackout, unlock Bruno, Scarlett, Diego, Shaw, Dempsey, Takeo, Nikolai and Richtofen

Gotta Raise 'Em All! Fully raised every type of pet

I Wanna Soak Up Some Sun Cleared Island Mode once

Archmage Kill 10,000 enemies.

Promise of a Flower Finish the "Promise of a Flower" Campaign.

Holy Knight of Legend Caught a Paladius

Prestigious Award Attain max level or Prestige with 25 different weapons in Zombies

Capped Out! Hajime Hinata breaks through level 99

Dark Knight of Legend Caught a Necromus

For the Hoard Collected every possible present

Professor's Diploma Beat the five base Challenges on Hard difficulty.

Sphere Craftsman Crafted 2,000 spheres

Crawl for Help In Classified, while in last stand use a teleporter and then get revived in a single game

Sage's Diploma Beat the five base Challenges on Bananas difficulty.

Heartless Make only negative choices

Jonesing for Relics Return all the Relics to the Museum in single player

Unintended Mistake Give out a gift that the other person doesn't like.

Blackout Historian In Blackout, unlock Reznov, Mason, Woods and Menendez

Preemptive Strike In Classified, kill 50 Nova 6 Crawlers without letting them explode in a single game

New Orleans Style Spanish Rice Become Suzerain of a City-State

In Synch Kill two enemies with simultaneous quick draws while in co-op mock surrender

Buffing... Please Wait Grant your team a Perk 10 times

Because it’s tradition Find the sheep.

Senseless Axe of Violence In Blood of the Dead, kill 5 zombies with the Hell's Redeemer before it starts its return

Freshman Surveyor Found 10 new areas

Desperation Complete all 3 Tiers of the Challenge “So Desperate!”.

Palpagos Guru Obtained 50 Lifmunk Effigies