With 80%+ deterioration. Whatever, player made gear (or the one bought at the gunsmith) is still the shit.
Also, you speak of modern battlefields. Fair nuff. While most perceive fonline's year 2238 as 'modern', it's actually not...quite. History didn't quite happen as it did irl and the whole planet was nuked. There are highwaymen roaming everywhere, pretty much everyone you meet in the wastes and their mom wants to kill you and take your stuff...that is not the kind of enviroment where I see supermutants (!!) taking care of who they burn with their flamer. NCR army and whatnot...they just panick and spray whatever the have in the hands blindly.
If you were in a wasteland, with an SMG in your hand, a full clip in it, all your 4 mates around you were dead, would you not burst the last super mutant standing next to you even though an innocent traveler was standing right next to him? (bloody bastard killed us both btw, but I was quite high, made a story out of it in my head and it was one of the coolest things that happened to me in fonline.

)
Dunno. I still think it's a minor thing.