i opened this up in max just now and i can tell you one thing:
all those weapons have got to go. right now.
either you remake them in sketch-up with all the normals correct and see if it converts okay, or you go download Truespace and redo the weapons in the Worst Modelling Program Known to Man
tm.

quite honestly, I don't know if i could even select all the faces that need to have their normals flipped, much less UV map those monsters.
and bizzybody's right, those missle launchers are pointing directly at the bridge:
Missile operator: Sir, we have a problem.
Supervisor: What is it?
Missile operator: You know that Dragon that just flew past? The one with "/V\Y /V4/V\3 15 (4r|_" spraypainted on the side?
Supervisor: yeah.
Missile operator: Well, the shivan inside flipped me off.
Supervisor: so?
Missile operator: So i got mad and accidentally hit the "missile launch" button.
Supervisor: did you get him?
Missile operator: Sir, we didn't have a missile lock.
Supervisor: OH SHI- *bridge blows up*
