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Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.

Complete all mission objectives in the “A Sinister Turn” mission.

Kill the Marauder Kill Team in “The Great Train Robbery” mission on Normal difficulty.

Kill 20 enemy units with the Laser Drill in “The Dig” mission on Normal difficulty.

Complete the Tosh storyline in the Wings of Liberty campaign.