Team Fortress 2 achievements

Decapitate 4 players with only 10 seconds between each kill.

Kill an enemy while you're being healed by an enemy Medic.

Kill 1000 enemies.

Kill 10 enemies with a Medic assisting you, where neither of you die.

Have 6 teammates using Pyrovision at the same time.

Teleport 100 team members into battle.

Heal 200 teammates after they've called for 'Medic!'.

Kill a charging Demoman.

Provide an enemy with a freezecam shot of you doffing your hat.

Pin an enemy Heavy to the wall via his head.

Use the Sticky Launcher to kill an enemy player via environmental damage.

Kill 3 enemies with a single critical rocket.