Complete all mission objectives in the “Whispers of Doom” mission.
Kill 250 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Complete all mission objectives in the “In Utter Darkness” mission.
Complete 5 Zerg research console projects.
Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.
