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Destroy all Zerg structures in "The Devil’s Playground” mission on Normal difficulty.

Destroy all Protoss structures in the “Welcome to the Jungle” mission on Normal difficulty.

Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.

Complete 20 missions in the Wings of Liberty campaign on Hard difficulty.

Complete the “Whispers of Doom” mission on Hard difficulty without Zeratul suffering life damage.