I really enjoyed Star Wars: Supremacy (SW: Rebellion in other lands, I see).
I never managed to figure out how to effectively play as the rebels but then again I never wanted to. Empire all the way. And I won in my most favourite winning of any game ever
I consolidated my hold over several planetary clusters totally, so that the rebels couldn't enter any cluster without being detected and had a
loooong trip back when they failed their missions.
I made sure I had enough defences for my territories, then I built a fleet of 30 Star Destroyer II's, 3 Super Star Destroyers, 2 Interdictor cruisers (to prevent the rebel scum running away) and I filled everything with a full complement of TIE Defenders and Dark Troopers.
I sent the whole task force to every planetary cluster that wasn't entirely under my sway, and any planet that couldn't be conquered diplomatically was expunged of all life before being stationed with a garrison of troopers
Eventually there was only one planet left, with the pesky wandering rebel base. I parked the huge fleet in orbit as a blockade so they couldn't go anywhere, and rather than simply invade the planet and conquer them, I spent a few long months building a Death Star, spent a few more months hyperspacing it over to the rebels' last stronghold, and eradicated them from existence.
I think Tarkin would have approved