Battle.net

Destroy 10 cloaked or burrowed units in a single Melee game.

Kill 50 supply worth of units within 15 seconds in a Melee game.

Destroy 40 units with a single unit in a single League game.

Destroy 4 Command Centers, Hatcheries, or Nexuses in a single League game.

Warp in 100 units with Warp Gates in a single League game.