Score the rank of Gold in all the challenge missions.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.