This is our Thread to keep you updated easier. Well we've finally got a Modeller whos committed fully O_o and I'm hopefully learning to Code courtesy of Redsaur. Have a couple of Screenshots while your at it. For a Random Slightly off-Topic Picture
A few things. First off, the triangulation of the bolter is going to be awful. Just use overlapping geometry (objects cutting into each other). Also, you could lop off a loop from the magazine.
You'll have to tweak the necron to atrocious degrees to make it fit the skeleton.
And finally, last time I checked anything newer than 9 had serious problems with exporting .xsi files.
Excuse the big pictures +_+ I'll pass your comments onto the Modellers because I don't think they check here I'll link him here anyway. Once I've been taught to Model by our Main Modeller I'll be able to understand what your on about and can give a much better response