Stomach Upset All Survivors complete a campaign without being vomited on.

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Unlockable How to Unlock 101 Cremations Set 101 Infected on fire.

Akimbo Assassin Survive a campaign firing no guns other than pistols.

Back 2 Help Leave a safe room to save an incapped teammate and bring them back Barf Bagged Cover four Survivors with Boomer bile at once.

Blind Luck You or another Survivor take no damage after being vomited on by a Boomer.

Bronze Mettle Earn a Bronze medal in Survival mode on any official level.

Clean Kill Shove a Boomer and then kill him without him splashing on anyone.

Dead Giveaway Heal a fellow Survivor when your own health is below 10.

Dead Wreckening Dole out 5000 total Survivor damage as a Special Infected.

Distinguished Survivor Earn at least a Bronze medal on every official Survival level.

Do Not Disturb Sneak past all Witches in a campaign without disturbing one.

Double Jump Pounce two different Survivors on one life as a Hunter.

Drag and Drop Rescue a Survivor from a Smokers tongue before he takes damage.

Ground Cover Save another Survivor from a Special Infected while on the ground.

Heroic Survivor Earn at least a Silver medal on every official Survival level.

Hunter Punter Shove a Hunter off of a pinned and helpless Survivor.

Lamb 2 Slaughter Incapacitate a Survivor after he has entered and exited a safe room.

My Bodyguard Protect any Survivor from an attacking Infected 50 times.

Nothing Special Survive a campaign with no Survivors taking damage from Specials.

Safety First Play through a campaign with no Survivors taking friendly fire damage.

Silver Bullets Earn a Silver medal in Survival mode on any official level.

Left 4 Dead Plus 3 Trainer-Cheathappens