Complete 25 missions in the Wings of Liberty campaign on Brutal difficulty.
Win 5 1v1 Unranked or Ranked games in a row.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.
Use the Artifact no more than once in the “All In” mission on Hard difficulty.