Dark Whispers - Nightmare All Achievements

Yes I know not having game audio is dumb. I'll replace this at some point but I've had way to many tech issues on these first few video and it's annoying me to no end Achievements 1st: Complete the "Dark Whispers" mission in the Whispers of Oblivion Campaign 2nd: Destroy 30 Zerg units during the "Dark Whispers" mission 3rd: Destroy 6 Terran units as they are warped in during the "Dark Whispers" mission in Normal difficulty Mastery: 10th: Destroy all Zerg structures before freeing all captive Protoss on the "Dark Whispers" mission on Normal Difficulty.