Score the rank of Gold in the “Infestation” challenge mission.
Complete 25 missions in the Wings of Liberty campaign on Brutal difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Regenerate 500 life on a single Roach without taking friendly fire in an Unranked or Ranked game.
Win a 1 vs 2 Multiplayer Custom Game with no Allies against 2 Harder A.I. opponents.