OK... I have...lots of issues with this one I'm sorry to say.
First, and most obviously, you need to warn people that it only works in 640x480. I was going to come in here and tell you that it was buggy as hell and didn't work at all at first, but then I thought about it for a second and switched down the res and got it to work. There are still lots of problems IMO though.
First off, you changed the keyboard controls for no readily discernable reason. It took me a fair old bit of fiddling around in the controls menu (which is really difficult to navigate BTW) just to get them back into a semblance of normality.
Secondly, the mission design is... overly simplistic at best. I realize this is a Beta and all, but a few well put together missions with slightly more complex briefings and debriefs wouldn't have gone astray. Certainly a few in mission messages so that I could at least have a vague idea of what was going on would have helped.
Thirdly, you don't seem to be pushing the limits of the FSO engine in the slightest. There's no spec, no glow, and I very much doubt there's even HTL (since the models look like they were pulled direct from XWA, and with the number of texs they have, they'd break the standard HTL system).
Basically the question I have to ask is... if you're not using the engine to its full capacity, why bother? Is this an early version that's slowly going to be upgraded, or is it a straight port of an existing SW game into FS2? If the second case is true... wouldn;t it be better to simply play whichever game the inspiration came from, the game that this sort of thing was designed for?
That said, I do intend to keep fiddling about with this one, just to see if I can get a bit more functionality out of it (and learn these new controls). It looks like you've put a lot of work into it (just turreting all the XWA ships would have been hell) and I'd like to explore it as completely as possible before I didmiss it entirely.