Complete the Wings of Liberty campaign.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 10 cloaked or burrowed units in a single Melee game.
Destroy a fully loaded transport in an Unranked or Ranked game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.