In a Versus round, leave the saferoom to defibrillate a dead teammate.
Revive 10 dead Survivors with the defibrillator.
Survive a campaign on Expert skill with Realism mode enabled.
Collect 100 gas cans in Scavenge.
Cause 25 gas can drops as a Special Infected.
Make a Survivor drop a gas can during overtime.
Collect 15 gas cans in a single Scavenge round.
As the Jockey, ride the Survivors twice in a single life.
As the Spitter, hit every Survivor with a single acid patch.
As the Charger, grab a Survivor and carry them over 80 feet.
As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds.
As the Charger, bowl through the entire enemy team in a single charge.
As the Jockey, ride a Survivor and steer them into a Spitter's acid patch.
As the Spitter, spit on a Survivor being choked by a Smoker.
As the Jockey, ride a Survivor for more than 12 seconds.
Win a game of Scavenge.
Stop the enemy team from collecting any gas cans during a Scavenge round.
Ignite 50 Common Infected with incendiary ammo.
Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline.
Finish a campaign using only melee weapons.
Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.
Using a Molotov, burn a Clown leading at least 10 Common Infected.
Kill 15 Infected with a single grenade launcher blast.
Kill a Tank with melee weapons.
Cross the bridge finale in less than three minutes.
Survive the Hard Rain campaign.
Navigate the sugar mill and reach the safe room without killing any Witches.
Navigate the impound lot and reach the cemetery safe room without tripping any alarms.
Survive the Parish campaign.
Kill 100 Common Infected with the chainsaw.
Use every melee weapon to kill Common Infected.
Kill one of each Uncommon Infected.
Survive the Swamp Fever campaign.
Use a bile bomb on a Tank.
Kill a Spitter before she is able to spit.
Kill 10 swampy Mudmen while they are in the water.
Defend yourself at the crashed airliner without taking damage.
Survive the Dark Carnival campaign.
Rescue Gnome Chompski from the Carnival.
Decapitate 200 Infected with a melee weapon.
Prove you are faster than Moustachio.
Prove you are stronger than Moustachio.
Honk the noses of 10 Clowns.
Deploy an ammo upgrade and have your team use it.
Survive the Dead Center campaign.
Kill a Jockey within 2 seconds of it jumping on a Survivor.
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.
Kill a Charger with a melee weapon while they are charging.
Form a team and beat an enemy team in 4v4 Versus or Scavenge.
In a Survival round, get a medal only using melee weapons.
Survive The Passing Campaign.
As the Charger, grab a Survivor and crash them through 8 chairs at the wedding.
Using the M60, kill 25 infected without letting go of the trigger.
Collect 10 items dropped by a Fallen Survivor.
Play 6 Mutations.
Knock off the heads of 18 infected with the golf club.
Play the new Midnight Riders song on a jukebox.
Kill a Tank only with damage from the original Survivors.
Open 5 foot lockers.
Survive all campaigns on Expert.
Play 5 full games of Scavenge on The Port.
