Kill the Brutalisk with lava in "The Devil’s Playground” mission on Normal difficulty.
Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy a fully loaded transport in an Unranked or Ranked game.