Complete the Wings of Liberty campaign.
Score the rank of Silver in the “Covert Ops” challenge mission.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Have 9 Terran units training simultaneously in an Unranked or Ranked game.