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