Kill 50 supply worth of units within 15 seconds in a Melee game.
Complete the “Maw of the Void” mission without losing a unit inside the Rip-Field on Hard difficulty.
Complete the “Breakout” mission on Hard difficulty in less than 25 minutes.
Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.
Complete the “Whispers of Doom” mission on Hard difficulty without Zeratul suffering life damage.