Kill the Marauder Kill Team in “The Great Train Robbery” mission on Normal difficulty.
Complete the Dr. Hanson storyline in 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.
Win a Free-For-All Multiplayer Custom Game against 7 Elite A.I. opponents.