Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.
Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.
Score the rank of Gold in all the challenge missions.
While playing as Zerg, warp in a Zealot in a Melee game.