Kill the Marauder Kill Team in “The Great Train Robbery” mission on Normal difficulty.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Complete the Wings of Liberty campaign.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Win 5 3v3 Versus A.I. games in a row against Very Easy opponents.