Complete 3 challenge missions with a Bronze rating or higher.
Complete the Wings of Liberty campaign.
Complete the “Shatter the Sky” mission without losing a unit to a Platform explosion on Normal difficulty.
Complete the “Ghost of a Chance” mission using Dominated units to kill at least 15 enemy troops on Normal difficulty.
Win a 1v1 Multiplayer Custom Game against an Elite A.I. opponent in under 5 minutes.