Win 50 Versus A.I. games against Medium opponents.
Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Warp in 5 Zealots during the first 250 seconds of a single Melee game.
Warp in a Twilight Council during the first 275 seconds of a Melee game.
Complete 20 missions in the Wings of Liberty campaign on Brutal difficulty.