General Kaliero
F = ma, beeyotches.
Well then, it seems the first order of business is to isolate the external sensors. If we already know they're coming in a day, then their intended use isn't really necessary.
Is there perhaps a way people with Fix-It can not only cut the sensors off from the rest of the systems, but set them up to fry anyone who tries to access them?
Second, the ventilation systems. They're not required to actually breathe while in the base, are they? Just for getting fresh air in, and tomorrow the air isn't going to be fresh. Disable them, or close them off between the lower base and the main section.
Third, I think we need to set up a guard at the main entrance. We know they'll place a sniper there, so let's head that off. Maybe pull in the Epireans in the destroyed settlements, so we'll save them and they can provide a defense force in return.
Fourth, the reactor seems pretty hard to reach without hacking, but there must be something we can do to make it even more difficult to reach.
Fifth, I think we do need to still deal with Ogros, for the sake of the long run. Leading a rebellion against us cannot go unpunished, if we want to keep our planet. We know they'll have droids, so maybe we can maximize our attacks to be anti-droid geared?