Destroy all Zerg structures in "The Devil’s Playground” mission on Normal difficulty.
Complete “The Moebius Factor” mission before Kerrigan destroys 6 Abandoned Structures on Hard difficulty.
Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Complete the “Belly of the Beast” mission without letting a hero fall Incapacitated on Normal difficulty.
Complete all 29 Wings of Liberty campaign missions on Hard difficulty.