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.
Complete all the Guide Three achievements.
Destroy the Loki in the “Engine of Destruction” mission on Normal difficulty.
Complete the “Shatter the Sky” mission without losing a unit to a Platform explosion on Normal difficulty.