Don’t take damage from the Archangel in the “Back in the Saddle” mission on Normal difficulty.
Complete all Bonus Objectives in each of the Kaldir Missions.
Reach the Prison Deck with Kerrigan in less than 8 minutes in the “Conviction” mission on Normal difficulty.
Complete 15 Heart of the Swarm campaign missions on Brutal difficulty.
Expand during the first 225 seconds of a Melee game.