Score the rank of Gold in the “Tactical Command” challenge mission.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Complete 20 missions in the Wings of Liberty campaign on Brutal difficulty.
Build a Factory during the first 270 seconds of a Melee game.