Train 10 Marines during the first 320 seconds of a single Melee game.
Have 9 Terran units training simultaneously in an Unranked or Ranked game.
Score the rank of Gold in the “Tactical Command” challenge mission.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.