One point, I've previously known some sites to insist on an element of realism when it comes to gun "classification", so for example a support gun using a box mag needs to be just that, a genuine support gun model & not an M4 (etc) with a box mag.
The same could be said for a dmr, so specifically longer guns based upon real world dmr models, sr25 for example, before you start ripping in to your L85 you might want to check that the regular sites you use, or any sites your planning on trying in the future allow non specific dmr's, or even aegs over 350fps. ?