Kill the Brutalisk with lava in "The Devil’s Playground” mission on Normal difficulty.
Score the rank of Gold in the “Harbinger of Death” challenge mission.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.