Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Complete all the Unranked / Ranked Combat achievements.
Survive 15 Infested Horde Attacks in the “Night 2 Die" mode of the “Left 2 Die” scenario.
Win a 1 vs 2 Multiplayer Custom Game with no Allies against 2 Elite A.I. opponents.
Complete 19 Legacy of the Void Campaign missions on Brutal difficulty.