This same topic came up in the mod forums before Ost came out, and the majority of people didn't like the idea, because if and when you really need to do something, like run, you're going to be all screwed up more then you already are when trying to dodge bullets and shells, you don't need more. If I remember correctly, the suppression blur effect that's currently already in the game, ie: when bullets wizz by you or a round goes off near by and the screen blurs, was the balanced solution to what everybody wanted.
You lose your focus a bit, but you don't have your arms and movement all screwed up completely to make you useless.
Now I know the main argument is that too many people run and gun and do suicide missions, etc. etc..... so this should make it harder.
But what about everybody else?
I know when I got a tank machine gunning through the windows of the building I'm in, and shooting rounds all over the place, I'm not about to stick my head out just to get shot and I keep my arse down until I think they moved away or distracted by something else.
And if I got two MG's or even just one who has me pinned down somewhere, I don't need to be all swaying and shaky if I need to take one shot when I can, or ditch and run the other way.
It's already hard enough trying to do this without several people shooting at you and killing you in seconds, I don't think we need something else to do add on top of it.