Destroy 4 Command Centers, Hatcheries, or Nexuses 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.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Kill 150 Zerg units with the Artifact in the “All In” mission on Normal difficulty.
Complete all mission objectives in “The Gates of Hell” mission.