Destroy the Planetary Fortress in the “Old Soldiers” mission before the nuclear strike on Hard difficulty.
Don’t let Stukov die in the “Phantoms of the Void” mission.
Reach Kerrigan Level 60 in the Heart of the Swarm campaign.
Complete the “Supreme” mission in the Heart of the Swarm campaign.
Reconstitute 500 Zerglings with Zergling Reconstitution.