This problem is getting stranger by the minute now. Just to put things in perspective. I have four models, all share 1x512x512 DDS texture and a cockpit glass section, same colour obviously. All four models are uniquely named for all their internal parts, only thing they share are the name for the textures. This way i can have 1 texture file for all the models instead of four. All four models show up in game without any problem apart from this see through interior hull nonsense.
As suggested i re-exported all four models, did them at the same time, same procedure for all four, now only two suffer from the problem. Could the issue be with how they are uvmapped for the last two models?