RGMD

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

Not today, demon Free 10 possessed teammates

Definition of courage Complete the game on Extreme difficulty

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

Drop The Bald Defeat Lex Luthor.

MEDIC!! Revive another player in online mode

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

For The Good Of All In Revelations, the Key must be opened.

Ground Control In Moon, prevent each excavator from breaching the base in one game.

On A Roll Complete Fast Food without losing a ball

Air to Surface Complete "Air to Surface" challenge

Whip 'Em Good Complete "Whip 'Em Good" challenge

Humanist Get at least 10 survivors out of the mall.

Yokai Restore 1500 health and land 5 critical hits without dying as Kiriko in Quick or Competitive Play.

Zombiepult In Gorod Krovi, launch 10 zombies into the air at the same time.

MEAT IS MURDER Activate Bubby.

OVERTIME MODE Unveil all CASES and be at the heliport at noon.

Light-Bringer Turn on 50 light sources

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

Bomber Squad Kill 10 enemies with one shot of the Ion Detonator

The Ultimate Race Win 1 Quick Race in the AcceleDrome (not unlockable in Online and Split Screen modes).
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Truly amazing Unlock all of a survivor's unique skills

Hail to the king, baby Reach the maximum level with a Survivor

This Damn Island In The Darkest Shore, explore the entire island.

Legendary Soldier Defeat at least 10 special forces soldiers.

And The LAW Won Land a final blow on a Boss Mutation with the LAW.

Little Lost Girl In Origins, release Samantha.

Enforced Freedom Kill 100 Zombies with explosions from Fire Works

Pent-up-agon In Classified, complete 5 consecutive rounds without leaving the war room elevator in a single game

How low can you go? Hit 18 enemies with a single shot of the LZ-52 Limbo in Carrier.

Coast 2 Coast Cross the water with a teleport grenade in Descent.

Defeat the Grub Buster Defeat the Grub Buster in the Mole Town Arena

Room Clearer Damage three opponents with a single attack

Day 10 Mastered Complete all Day 10 challenges at gold level

No Leaks Make it through the NOVA 6 gas without dying on Rebirth Island.

Sacrificial Lamb Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.

No, Thank You Defeat at least 100 cultists.

A Better Tomorrow In Revelations,complete the cycle.

How the mighty have fallen! Defeat Oz... again in Descent.

Act 5 Veteran Complete all Act 5 maps on Veteran difficulty or higher.

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

Day 6 Mastered Complete all Day 6 challenges at gold level

Raining Zombies Knock at least 10 zombies aside with a parasol.

∞ MODE Get the true ending.

It's your funeral Complete "Numbers," "Project Nova," and "Victor Charlie" on Veteran difficulty.

Item Smasher Break at least 30 items.

Mad Hops Jump over 4 live sharks in 10 seconds in Carrier.

Bully Defeat an opponent who is Grabbed by your team-mate

Songbird Teach your pet 25 different songs

Day 9 Mastered Complete all Day 9 challenges at gold level