It's funny you should mention this, because this is something I always think of whenever I play 1st persian shooters. I think it would be kind of pointless however just because 1 of the reasons I like videogames is because its nonstop entertainment. Reloading a mags on a video-game would just be monotonous IMHO. If I were going for as realistic as possible on a video game, sure, it would be more realistic. But I would quickly get frustrated at the game and turn it off. Maybe that would be a better choice for a game like Splinter-sell or something like that.
I couldn't figure out why they made your vision blurry on "Black" either. It was really annoying.