Thanks for letting me know. I'll do my best to satisfy your suggestions, however, there are a few problems concerning this things:
Shotguns are rarely used in the Russian army (if they are used at all), I can draw a Saiga-12 though, but it's not too common anywhere.
I've already drawn a helmet, but it sucks, so I've decided not to upload it. I might draw another one, but it's really difficult because you can't give specific details to a somewhat clear thing, despite scratches, but you can't do those with Gimp.
As for the sidearm, I have to come up with a unique detail. I dunno if I should make it look like my other weapons or give it a new setting, but I'll do it when I've finished the landmine.