Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.
Destroy 30 units with Infested Terrans in an Unranked or Ranked game.
Score the rank of Gold in all the challenge missions.
Warp in 100 units with Warp Gates in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.