Destroy an enemy Barracks, Factory, and Starport in the “Media Blitz” mission during the sneak attack on Normal difficulty.
Don’t let the Odin drop below 30% of its total life in the “Engine of Destruction” mission on Hard difficulty.
Complete all mission objectives in the “Cutthroat” mission.
Kill 75 enemy units or structures with cloaked Banshees in the “Supernova” mission on Hard difficulty.
Complete 15 missions in the Wings of Liberty campaign on Hard difficulty.