Kill 50 enemies with your flamethrower, from behind.

Ignite an enemy, and the Medic healing him.

Kill a burning enemy who was ignited by another Pyro.

Have 2 enemy Scouts on fire at the same time.

Force 10 burning enemies to jump into water.

Kill 15 players while you're dead.

Ignite 10 disguised Spies.

Kill an enemy with a taunt.

Ignite an enemy Spy while he's flicking a cigarette.

Cause a dominated player to leave the server.

Kill 3 enemies while they're taunting.

Kill a Soldier with a reflected critical rocket.

Kill 500 enemies.

Kill 1000 enemies

Ignite 100 enemies with the flare gun.

Do 1 million points of total fire damage.

Reflect 100 projectiles with your compressed air blast.

Use your shotgun to finish off 20 players you've ignited.

Ignite 5 Spies who have a sapper on a friendly building.

Ignite 5 enemies carrying your intelligence.

Ignite 10 cloaked Spies.

Ignite 10 enemies that have recently used a teleporter.

Kill 3 enemies in a row, all within the same area.

Kill 3 people with your axe in one life.

Kill 6 people with your axe in one life.

Ignite 10 snipers while they are zoomed in.

Ignite 3 medics that are ready to deploy an Uber-charge.

Kill 50 Heavies with your flamethrower.

Kill 10 enemies while you're both underwater.

Kill 3 enemies in a single uber-charge.

Destroy 50 Engineer buildings.

Ignite 50 enemies capturing one of your control points.

Kill an enemy in the same second that he kills you.

Ignite a rocket-jumping Soldier while he's in midair.

Provide enemies with freezecam shots of each of your taunts.