Restart the generator within 30 seconds of it shutting off in the Crash Course campaign.
Survive the Blood Harvest campaign.
Survive the Dead Air campaign.
Survive the Death Toll campaign.
Punch a Hunter as he is pouncing.
Survive the No Mercy campaign.
Survive an entire campaign using only pistols.
Sneak past all Witches in a campaign without disturbing one.
Beat a campaign with all 4 Survivors.
Survive a campaign without being incapacitated.
Heal a fellow Survivor when your own health is below 10.
Save another Survivor from a Special Infected while on the ground.
Kill 10 Smokers as they are pulling helpless Survivors.
Pounce two different Survivors in one life as a Hunter.
Protect any Survivor from an attacking Infected 50 times.
Shove a Hunter off of a pinned and helpless Survivor.
Kill an Infected with a single blow from behind.
You or another Survivor take no damage after being vomited on by a Boomer.
Set 101 Infected on fire.
Rescue a Survivor from a Smoker's tongue before he takes damage.
Free yourself from a Smoker who has grabbed you with his tongue.
Blow up 20 Infected in a single explosion.
Light a Witch with a Molotov.
Light a Tank with a Molotov.
Make 100 headshot kills.
Headshot a Hunter while he's leaping.
Leave a safe room to save an incapped teammate and bring them back safely.
Shove a Boomer and then kill him without him splashing on anyone.
Drag a Survivor 100 feet with your tongue.
Constrict two Survivors in one life as a Smoker.
Cover four Survivors with Boomer bile at once.
Kill all four Survivors in one life while playing as a Tank.
Dole out 5000 total Survivor damage as a Special Infected.
As an Infected, incap a Survivor who has entered and left a safe room.
Complete "The Sacrifice".
Have Bill sacrifice himself for the team.
Kill a Special Infected with an exploding barrel.
Have all 3 generators running at once in "The Sacrifice" finale.
As a Special Infected, incap someone who is trying to sacrifice themselves.
Survive the Crash Course Campaign.
Kill 5,359 Infected in the Crash Course campaign.
Win a Versus campaign of Crash Course.
Your team wipes all Survivors after the escape vehicle has opened in Crash Course.
As a Tank hit 20 Survivors with a car in the Crash Course campaign.
Pounce a Survivor for 25 points of damage in the Crash Course campaign.
Smoker pull a bile-covered Survivor until you hold him during Crash Course.
Stun a Tank with an explosion in the Crash Course campaign.
Your team incapacitates three Survivors within five seconds in the Crash Course campaign.
Revive 50 incapacitated Survivors.
Heal 25 Survivors with a first aid kit.
Give pain pills to 10 Survivors.
Kill a Witch with a single headshot.
No Survivors take damage after contacting the rescue vehicle.
Rescue a Survivor trapped in a closet.
Single-handedly kill a Tank.
Kill a Tank without it dealing any damage to a Survivor.
Play an entire campaign with no Survivors taking friendly fire damage.
Finish a campaign without ever being healed.
Kill a Witch without any Survivor taking damage from her.
Kill 1000 Infected with a mounted machine gun.
Kill 53,595 Infected.
Survive any campaign on Expert.
Survive all campaigns on Expert.
Survive a campaign with no Survivors taking damage from Special Infected.
All Survivors complete a campaign without being vomited on.
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