Restart the generator within 30 seconds of it shutting off.

Rescue a Survivor trapped in a closet.

Shove a Hunter off of a pinned and helpless Survivor.

Rescue a Survivor from a Smoker's tongue before he takes damage.

Kill a Smoker who has grabbed you with his tongue.

Kill 10 Smokers as they are pulling helpless Survivors.

Revive 50 incapacitated Survivors.

Have all 3 generators running at once in "The Sacrifice" finale.

Have Bill sacrifice himself for the team.

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

Survive the Dead Air campaign.

Survive all campaigns on Expert.

Survive any campaign on Expert.

Survive the Blood Harvest campaign.

Survive the Crash Course Campaign.

Survive the No Mercy campaign.

Survive a campaign with no Survivors taking damage from Special Infected.

All Survivors complete a campaign without being vomited on.

Survive the Death Toll campaign.

Survive a campaign without being incapacitated.

Stun a Tank with an explosion in the Crash Course campaign.

As a Special Infected, incap someone who is trying to sacrifice themselves.

Win a Versus campaign of Crash Course.

Your team wipes all Survivors after the escape vehicle has opened in Crash Course.