Anything can be destroyed from the inside. Me, an X-Wing, a Nebulon-B Frigate, a Star Destroyer, the Death Star. The question is whether or not it's a good idea to make such a map. It's a slightly silly concept tin my eyes, with all due respect. Just slightly, though. There was a mission in GC where you were to storm an Imperial research facility and repair yard while a space battle was going on outside. Once inside, you were to blow up three X-1 TIE Advanced prototypes. Once you'd done this, as well as blow up the station's external comm dish, you won.
Bottom line is I've got no problem with objective missions where you are to blow stuff up. But they were easily just come across as silly and cliché.
As for the implementing of Star Destroyers, I can't speak for FS, but in GC, there was a scaled-down Star Destroyer model. It was static, less than hundred meters long, and the only interior in it was the hangar bay. However, there was also a map which was made up entirely of interiors, and was supposed to be the inside of a Star Destroyer with a skeleton crew. Rebels would start in the hangar bay and fight their way to the command deck. The map featured a ventilation duct to sneak through, an on-board 'rail' system with little prams, and an elevator section that got you to the bridge deck. Then there were check points to capture throughout the vessel, and mouse droids that could be used for scouting. I'd like some more features, such as a couple of barricades with E-Web positions throughout the ship, but overall it was a great ma, and I'd love an FS version.
Oh, and before I remember it, Titan mode is not in.
"One of the bitches actually gave birth while she was attacking, and her puppies joined in on the carnage."
--the awesomeness that is Boatmurdered.