I hope you all realize that real world weapons really do fire with a "cone" of fire. (Unless of course they're uber-laser guns.)
That cone of fire that so many games put in is to emulate the inability of a person in a typical battle field situation of being able to put rounds into the same
exact spot with each shot. The problem I've had with that system is that they tend to massively over do it.
I say that because, I'm of the same opinion that if one doesn't like the cone of fire concept (a concept that puts the real world physics of human physiology, ammo, windage, and weapon differences into play) then how can one like a system that removes their ability to hold their (non-cone shooting super-precise) weapon on target? Its pretty much one in the same, imo.
imo, ROOST's current system of gun sway, rested weapon, etc. do a pretty good job of emmulating in the field conditions (the weapons may be a tad too precise, but it makes for a fun game). Just the mere fact that a skilled mg'er has got you pinned down, should (as Nimsky suggests) be incentive enough to keep your head down. You stick your head up, you die. (I hope that the pop-up shooter is gone. Seems I saw John's ppsh locked on to the same spot when he popped up over the sand bags in one of the Russian videos.)
Smoke from the mg works both ways. The mg'er is going to have a harder time deciphering just exactly where you are as his vision is obscured as well as yours. Not only that, on a map like Kriegstadt smoke would give away your position. If an mg'er has lost sight of me and firing 10 feet to my left or over my head, I', sure I'd do everything I could to rain down a my own suppressive fire upon him.
And as Morello suggests:
I think we'll be surprised with how much difference bullet penetration changes the playing field with regard to suppressive fire though, so I'm more than happy to wait and see what the game has in store for us.
Come game day, we may be more concerned about that than anything.
In short, I'd have to say that something along the lines of the current suppression with more sound and additional visual impairment (dirt, fragments, etc), would be my preference.