Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.
Complete “The Moebius Factor” mission before Kerrigan destroys 6 Abandoned Structures on Hard difficulty.
Score the rank of Gold in the “Harbinger of Death” challenge mission.
Kill all Protoss in the “A Sinister Turn” mission on Normal difficulty.
Save 2 Colonist Outposts in the “Safe Haven” mission on Hard difficulty.