Just my 5 cents, but when I just visited the site I clearly got the idea that the 'wings' and the 'disc' are from the same object and belong together. Some wings are broken off, but some seem clearly connected to the disc.
If you use the debug cam to look under the surface, you can see that the disc part is steeper under the surface (below) than above (top).
[url]https://s16.postimg.org/uzazpri4l/Screenshot_000140.jpg[/URL]
What I wonder is whether the 'skid marks' tell us anything. The rubble around the ship is in such a peculiar shape, I don't think that is random. Maybe that can tell us something about the way the thing crashed? Also, as has been said before, to me this site doesn't look the same as in the blurry GamesCom video (wreck with SRV next to it and Cobra in the corner). Maybe there are more sites like this?