The Moebius Factor
Your objective is to destroy several Moebius archives before Kerrigan can enter them and discover the locations of the remaining artifacts. As the area is already overrun with Zerg forces, you'll need air transports to move your troops safely. Medivacs are a good start, but the Hercules is even better, as it can hold over twice the amount and the passengers will survive if it's destroyed. You'll want marines, marauders and goliaths to board these transports, and wraiths and vikings to help escort them. Two factories, starports, and barracks will be a good start.
Leave some ground units behind at your base too. Nydus worms will spawn ever so often, and you'll need to keep your command center safe. For the assault on the archives, there is typically a safe area to land and drop off your army. Many times there will also be stranded troops that will join your side. Be sure to save as many as possible. For the final archive, there is a lot of anti-air resistance. You'll need to keep your Vikings and wraiths ready to take out these Zerg while your transports take your ground units towards victory.
