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 40 units with a single unit in an Unranked or Ranked game.
Complete 5 missions in the Wings of Liberty campaign on Brutal difficulty.
Destroy 15 Infested structures at nighttime in the “Outbreak” mission on Hard difficulty.