Have a dispenser heal 3 teammates at the same time.
Achieve 11 of the achievements in the Spy pack.
Jarate an enemy that you're dominating.
Jarate an enemy and the Medic healing him.
Assist in killing 3 enemies on an enemy control point, in a single life.
In a single life, kill an enemy while you are on the ground, in the air, and in the water.