Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Complete 10 missions in the Wings of Liberty campaign on Hard difficulty.
Complete “The Outlaws” mission on Hard difficulty in less than 10 minutes.