Destroy 40 units with a single unit in an Unranked or Ranked game.
Use Blink to save a Stalker in a Melee game.
Destroy 10 cloaked or burrowed units in a single Melee game.
Train 10 Marines during the first 320 seconds of a single Melee game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.