I think everything is fairly balanced or as close as it can be. Shotguns will always be powerful, snipers are a higher skill gap weapon but with a lot less danger if your good with it. I'm telling you if you make snipers on par with shotguns there's no point to use shotguns. Basically a sniper can do everything it can do but from a safe distance. Thus rendering a better choice. But sure buff them what could go wrong. Make them the strongest special in the game, nerf shotguns range to a 3rd of what it is now, double fusion rifles range and tighten it's spread. There we've effectively taken it out of the meta to never return.