I've got to say that I'm glad this is being discussed. I hate most of the shotguns in OFP. The point of a shotgun is not to shoot slugs (although that would be kind of cool I guess), but to have a very short range, but with enough spread to minimize the need to aim. I don't like the way most of the addons shoot a bunch of bullets in rapid succession (it is stupid how your ammo counter goes from 30 to 20, or whatever). I like the camcreate idea, since that seems to be the best possible way to actually solve the problem. You could also make various scripts for different types of shot, so you can use heavy buckshot that throws out a few larger projectiles, or light weight birdshot (not that they use too much of that for the military) to give a lot more "pellets" in the impact area.
Thanks, and "DON'T GET ELLIMINATED"!