Kill 50 supply worth of units within 15 seconds in a Melee game.
Score the rank of Silver in the “Harbinger of Death” challenge mission.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Heal 300 life on allied units with Medivacs in an Unranked or Ranked game.
Train 10 Marines during the first 320 seconds of a single Melee game.