Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 30 units with Infested Terrans 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.
Score the rank of Gold in the “Infestation” challenge mission.
Complete the Heart of the Swarm campaign.