Well if the Imperials lose Coruscant and managed to find a place to hide they could always turn themselves into a HQ and turn into the Rebels.  : Well if its possible to remove Coruscant/Losing heroes/ and other triggers to make this work  ;D Well I heard someone mention it before and I will mention it again 

I thought you were talking about making a Death Star map  ;D, that would be cool. Having a skirmish map where as the Rebels you have to destroy the Thermal port, and as Empire protect it.