[Punisher454]

The rear door on the shuttle is a particularly interesting modeling challenge, seeing how the studio model design makes it a little impossible to make a working door without changing something. the challenge is to minimize the mods to the design to make it work.
For my project I have added an extra degree of difficulty since I am limited to 65k vertices per model in the game engine.

For your shuttle you'll be much happier with assets you make yourself. Its interesting to watch how quickly Blender is started to be accepted as a more serious modeling app. Even the Game engine I am working with now has a way to import Blender models.