Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.