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Kill 250 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.

Complete the Wings of Liberty campaign.

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