Score the rank of Gold in all the challenge missions.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
While playing as Zerg, warp in a Zealot in a Melee game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Use the Artifact no more than once in the “All In” mission on Hard difficulty.