Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Complete the “Shatter the Sky” mission on Hard difficulty in less than 25 minutes.
Complete all 29 Wings of Liberty campaign missions on Hard difficulty.
Complete the “Maw of the Void” mission without losing a unit inside the Rip-Field on Hard difficulty.
Complete all mission objectives in the “Safe Haven” mission.