Battle.net

Destroy 40 units with a single unit in an Unranked or Ranked game.

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

Call down 30 MULEs in an Unranked or Ranked game.

Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.

Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.