Perhaps soldiers could shoulder the weapons tighter like you would in real life when you hold down mouse button 2. For those who have fired an 5.56 or 7.62, you know that the recoil is not this bad at all. This is a 6.5mm round, somewhere between these two examples.
I, too, would like the ability to apply a bi-pod or rest the weapon. In all seriousness though, the 2035 soldiers could just try not being such bitches.
See a professional shoot vs. newbies: http://www.youtube.com/watch?v=H8mscDI-fKk
EDIT: The chick at :50 shoots with ARMA 3 recoil. Lol. I mean just tone it down like 30%.