I got my kids into shooting by having my PTR-91 duracoated with red tiger stripe (looks the same as the G3 from the games naturally). Yes, that's what it takes kids these days to get into shooting, lol.
I agree, it's free advertising, and it makes the game better. In the COD world, I hate the modern warfare series because they don't use real gun noises. I am that picky, lol.