In both Starcraft and Brood War, and why? I personally found the original Zerg campaign the best of them all. I was expecting simple search & destroy missions with little to no story. Luckily, that wasn't the case. I mean, the Overmind, the Cerebrates with their different personalities... It was brilliant. Still, the story got the most interesting after Kerrigan, a Terran Ghost, got added to the Swarm. Kinda ironic. ^^ What do you think?