Prevent the Protoss from capping a Tal’darim Altar in the “Welcome to the Jungle” mission on Hard difficulty.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Score the rank of Gold in the “Psionic Assault” challenge mission.