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