To be honest, many of the guns already are redundant to the point that some are carbon copies of each other stat wise, I actually would like to see more weapons as it just adds depth and flavor, and for some reason I can't explain even if some weapons are basically carbon copies or very close to it, I'll often feel far more comfortable with one in game than another. sounds strange I know but I swear it happens.
Not what an insurgent would carry, only Soviet, Chinese, Eastern Block and other middle eastern guns.
No offense man but you should really see what's being used in places like Iraq and Syria or found on the various black markets there, plenty of American and Western European goods to be found.
That being said I kind of would prefer that theme be kept anyway just for varieties sake.