Complete the Tosh storyline in the Wings of Liberty campaign.
Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.
Kill the Marauder Kill Team in “The Great Train Robbery” mission on Normal difficulty.
Complete all mission objectives in the “Media Blitz” mission.
Complete the “Smash and Grab” mission on Normal difficulty without losing a unit to a Protoss Stone Guardian.