Complete all the Missions Difficulty Achievements.
Complete all 30 rounds in “StarCraft Master".
Earn 100,000 Bonus Objective XP on Brutal difficulty.
Reach level 15 with Raynor, Kerrigan, Artanis, Swann, Zagara and Vorazun.
Hold out until 2.2 billion Zerg arrive on Shakuras in the “Last Stand” mission on Hard difficulty.