The rebels like the empire and constorium need credits to build their armies. So capture the planets Polus, Kressel Coruscant, Aeten 2, and the one planet at the very top right, along with the two rebel controlled planets at the far left of the galaxy. Capturing these planets will give you high credit value so build mining facilities along with an ion cannon, barrack, light/heavy factories, and the turbo laser turrets If possible use the shield generator too. But on some planets like Aeten 2 the buildings are limited to three so build a barracks, light factory and your choice of turbolaser towers, ion cannon, or mining facility. No matter how you build on these planets remeber to build at least one mining facilty .

Capturing these planets will hurt your enemy and benefit you, if possible raid the planet to conquer it.

Another key planet is Nal Hutta, try to get it early in the game since the longer you wait harder it gets, but getting this planet will give you a bounty for all zann constorinum. Once you've done this attack the constorium so corruption will disappear. but leave the Maw and build a lot of space stations on its surrounding planets, this is for emergency money when your running low go and battle then retreat.

Then destroy the empire by cornering them inro a planet in which allies will assist you, such as Sullest, Kashekk, Mon Calamari, and others.

leaving them on a planet with your allies gives you the advantage of crushing them then if you haven't done so already focus all firepower on the Maw and cruch the Constorium.

Note make sure you remove any corruption that come from the Maw otherwise they might manage to sneak yet another system.