Destroy 30 units with Infested Terrans in an Unranked or Ranked game.
Score the rank of Gold in the “Infestation” challenge mission.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Win 100 Versus A.I. games as Zerg.
Kill 50 supply worth of units within 15 seconds in a Melee game.