Kill 50 supply worth of units within 15 seconds in a Melee game.
While playing as Zerg, warp in a Zealot in a Melee game.
Score the rank of Gold in all the challenge missions.
Destroy 30 units with Infested Terrans in an Unranked or Ranked game.
Destroy 40 units with a single unit in an Unranked or Ranked game.