Left 4 Dead 2

Defend yourself at the crashed airliner without taking damage.

Survive the Parish campaign.

Navigate the impound lot and reach the cemetery safe room without tripping any alarms.

Use every melee weapon to kill Common Infected.

Survive the Hard Rain campaign.

Kill a Jockey within 2 seconds of it jumping on a Survivor.

Survive the Swamp Fever campaign.

Kill 10 swampy Mudmen while they are in the water.

Ignite 50 Common Infected with incendiary ammo.

Kill one of each Uncommon Infected.

Using a Molotov, burn a Clown leading at least 10 Common Infected.

Survive the Dark Carnival campaign.

Prove you are faster than Moustachio.

Prove you are stronger than Moustachio.

Decapitate 200 Infected with a melee weapon.

Survive the Dead Center campaign.

Finish a campaign using only melee weapons.

Kill 100 Common Infected with the chainsaw.

Have Bill sacrifice himself for the team.

Complete "The Sacrifice".

Kill 15 Infected with a single grenade launcher blast.

Using the M60, kill 25 infected without letting go of the trigger.

Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.

Survive The Passing Campaign.

Open 5 foot lockers.

Knock off the heads of 18 infected with the golf club.

Play the new Midnight Riders song on a jukebox.

Use a bile bomb on a Tank.

Deploy an ammo upgrade and have your team use it.

Kill a Spitter before she is able to spit.

Navigate the sugar mill and reach the safe room without killing any Witches.

Win a game of Scavenge.

As the Jockey, ride a Survivor for more than 12 seconds.

As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds.

As the Jockey, ride the Survivors twice in a single life.

Rescue Gnome Chompski from the Carnival.

Honk the noses of 10 Clowns.

As the Spitter, hit every Survivor with a single acid patch.

As the Charger, bowl through the entire enemy team in a single charge.

As the Spitter, spit on a Survivor being choked by a Smoker.

Kill a Tank with melee weapons.

As the Jockey, ride a Survivor and steer them into a Spitter's acid patch.

Kill a Charger with a melee weapon while they are charging.

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 Special Infected with an exploding barrel.

Play 6 Mutations.

As the Charger, grab a Survivor and crash them through 8 chairs at the wedding.

Play 5 full games of Scavenge on The Port.

Kill a Tank only with damage from the original Survivors.

Collect 10 items dropped by a Fallen Survivor.

Survive all campaigns on Expert.

Collect 100 gas cans in Scavenge.

Form a team and beat an enemy team in 4v4 Versus or Scavenge.

Cause 25 gas can drops as a Special Infected.

Revive 10 dead Survivors with the defibrillator.

In a Versus round, leave the saferoom to defibrillate a dead teammate.

Collect 15 gas cans in a single Scavenge round.

Survive a campaign on Expert skill with Realism mode enabled.

Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline.

Cross the bridge finale in less than three minutes.

As the Charger, grab a Survivor and carry them over 80 feet.

Make a Survivor drop a gas can during overtime.

Stop the enemy team from collecting any gas cans during a Scavenge round.

In a Survival round, get a medal only using melee weapons.