[Captain Kwok]

Well technically you shouldn't have a ship set without any model files or else it's not really a fun custom set. I would think it would use the default models and slot layouts since that's what happens with neutral races, which have no models or layout references in their folders. Not sure if that would be applicable to the middle of a game if the original referenced models or slots file were not found anymore. I would think that would scramble something up since the slot layouts would be different.