I wish you could do more.
I know Star Control isn't, like, a strategy, take-over-the-galaxy kind of game, but I think it'd be fun to be able to do it.
Like, if the Scryve have taken over a system, you can fight them and take it back...but you can only do it with systems they've conquered; you can't change the map by taking systems they controlled at the beginning of the game.