Complete The Places We're Meant to Die
Beat an Echo Six Expansion Pack mission with the 3 male characters in your party.
Shut Down or Destroy 5 Turrets
Complete Root of All Evil
Complete an Echo Six Expansion mission with no human player incapacitated from death or infection.
Complete an Echo Six Expansion mission without killing anything with a gun.
13 Bomb Dogs Detonated
Continue playing to unlock this secret achievement.
As Tweed, use C4 to open door in Foundry
Complete all U.S.S. missions on Professional.
Purchase all available weapons.
Complete Nothing is as it Seems
Complete I Now Know Why You Cry
Kill every zombie in the Park before leaving.
Complete By the Trail of Our Dead
Beat an Echo Six Expansion Pack mission with the 3 female characters in your party.
Kill 103 enemies with incendiary rounds (lifetime)
Kill 100 zombies with CQC (lifetime)
Collect all 7 Raccoons.
Complete all U.S.S. missions with an S Rank.
Complete all U.S.S. missions on Veteran.
Kill 13 zombified teammates.
Purchase all abilities for all character classes.
Purchase 15 weapons.
In Survivors mode, have all 4 players on your team Survive the game.
Force 25 enemies to drop G-Virus Samples in Biohazard (lifetime).
Kill 10 enemy players in one Versus game with CQC.
Kill an enemy with each weapon type including special weapons.
Achieve a 10 kill streak in a Versus match.
Kill 5 players in one multiplayer game with CQC Kills.
Kill 5 enemies consecutively while using a zombie as a shield.
Kill 13 zombie dogs (lifetime)
Fully upgrade all abilities for one character class.
Heal with 101 Green Herbs (lifetime)
Purchase 5 weapons.
Achieve a 5 kill streak in a Versus match.
Complete the sixth mission of the U.S.S. campaign.
Complete the fifth mission of the U.S.S. campaign.
Kill a Licker that is grappling a Teammate.
Complete the fourth mission of the U.S.S. campaign.
Play at least one match in every Versus game type
Collect 3 G-Virus Samples in one Biohazard match.
Purchase all abilities for one character class.
Fully upgrade an ability.
Complete the third mission of the U.S.S. campaign.
Kill 5 enemies by causing Blood Frenzy in a single campaign game or multiplayer match.
Kill an infected teammate with a headshot before they become a zombie in any mode.
Complete the second mission of the U.S.S. campaign.
Witness the beginning of the Raccoon City outbreak.
Purchase an ability.
Kill 5 enemies with Rocket Launcher
Complete Longest Yard
5 Tyrants Slain
Kill another player with Crucible in a Foundry Versus Match
Deliver all 5 virus samples for your team in Dispatch's Biohazard Mode
3 Super Tyrants Slain
Gain S+ on all U.S.S. missions on Veteran or Professional difficulty
In Heroes mode, eliminate 4 Heroes in one game.
Complete 98 Versus games
Upgrade all abilities for all characters to its maximum level.