Complete all 29 Wings of Liberty campaign missions on Hard difficulty.
Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in a League game.
Attack for 20 seconds with no counterattacks in a League game.
Score the rank of Gold in the “Infestation” challenge mission.
