Okay so I played this for the first time tonight. Definitely not a pro yet but I'm getting the hang of it (never played Descent). I have an X-Wing fleet of about 60 ships. Would it be possible to make missions for both games similar to the way Han and company had to destroy the shield generator on Endor for the rebel fleet to blow up the Death Star? So basically 5 people playing IA on ground and maybe 4 playing X-Wing with a slight imperial advantage until a condition is met on the ground? Thoughts? I think it would take a lot of work but be super epic.

Probably. The advantage of using physical components is they do whatever the rules you come up with say they do. Give the Empire infinite reinforcements via respawning generics and give the rebels an objective to destroy the Death Star reactor, which they can't do until the ground forces have knocked out the Shield Generator.