Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Train 10 Marines during the first 320 seconds of a single Melee game.