Complete Act 4 on Recruit difficulty or higher.
Complete a mission with each of the original Cleaners.
Complete Remnants.
Complete all Act 3 maps on Recruit difficulty or higher.
Complete Dr. Rogers' Neighborhood.
Find the secret in "Remnants".
Find the secret in "Dr. Rogers' Neighborhood".
Complete all Act 2 maps on Recruit difficulty or higher.
Rescue a teammate from a cocoon.
Kill 10 Ridden with Bob's Arm.
Complete The Armory.
Complete Plan B.
Complete Job 10:22.
Find the secret in "Job 10:22".
Find the secret in "Plan B".
Find the secret in "The Armory".
Find the secret in "Blue Dog Hollow".
Find the secret in "The Dark Before the Dawn".
Find the secret in "Search & Rescue".
Complete Blue Dog Hollow.
Complete all Act 1 maps on Recruit difficulty or higher.
Complete The Dark Before The Dawn.
Drop some ammo for a teammate.
Complete Search & Rescue.
Kill at least one of each non-boss Mutation.
Complete The Devil's Return.
Kill 15 enemies while downed.
Find the secret in "The Devil's Return".
Complete a level while getting at least 50 kills with melee weapons.
Form a party in Fort Hope.
Spend your first Supply Point.
Revive a fallen teammate.
Heal a teammate.
Complete a mission without any players being incapacitated or killed.
Complete a map without ever triggering a horde from Reekers, Birds, Snitches, or alarms.
Good luck out there, you're gunna need it.
Safely descend the ladder in the construction zone in Resurgence.
Have at least five different Food Buffs active at one time.
Complete all Act 5 maps on Nightmare difficulty or higher.
Complete all Act 5 maps on No Hope difficulty.
Find the Secret in Act 5.
Hit a Pusflinger with a Bait Jar.
Kill a Slasher with Iron Claws.
Kill a Sniper with a Sniper Rifle.
Kill a Crone with the Bow.
Use a Smoke Grenade to become hidden while at Critical Health.
Jump over a Cultist Bear Trap without triggering it.
Bring 11 Duffel Bags to Saferooms.
Complete all Act 1 maps on Nightmare difficulty.
Complete all Act 6 maps on Recruit difficulty or higher.
Complete all Act 5 maps on Veteran difficulty or higher.
Complete all Act 6 maps on Veteran difficulty or higher.
Complete all Act 6 maps on Nightmare difficulty or higher.
Complete all Act 6 maps on No Hope difficulty.
Find the Secret in Act 6.
Land a final blow on a Boss Mutation with the LAW.
Set an enemy on fire with the Flame Thrower, while also being on fire.
Play Trial of the Worm for the first time.
Earn a score of at least 100,000 in Trial of the Worm.
Complete all Act 2 maps on Veteran difficulty or higher.
Complete a map in Trial of the Worm with a total modifier of at least x20.
Kill all variants of the Sentinel.
Defeat The Harbinger without using the LAW.
Complete all Act 1 maps on Veteran difficulty or higher.
Complete all Act 5 maps on Recruit difficulty or higher.
Defend the jukebox in Bar Room Blitz without it breaking.
Complete all Act 3 maps on Veteran difficulty or higher.
Play 25 cards in a single match.
Win a game in Swarm Mode.
Complete a map without any players on the team killing a single Ridden.
Kill an Ogre with the Howitzer.
Make a Breaker hurt itself.
Kill a Monstrous Breaker after removing all of its armor.
Kill a Snitch without it alerting the horde.
Kill 53,600 Ridden over your career.
Complete Act 4 on Nightmare difficulty.
Complete Act 4 on Veteran difficulty or higher.
Complete all Act 3 maps on Nightmare difficulty.
Find the secret in "The Abomination".
Find the Secret in Caustic Cesspool.
Complete All Ridden Hives.
Get a kill with a Legendary Weapon.
Earn some Skull Totems.
Kill 10 Ridden with a Skull Totem.
Complete all Act 2 maps on Nightmare difficulty.
Kill each of the Warped Ridden.
Find the Secret in The Nursery.
Find the Secret in Sunken Passages.
Find the Secret in The Cut.
Find the Secret in Brood Lair.
Find the Secret in 300 Below.
Find the Secret in Blood Stream.
Blow up a Food Item with the LAW.