The Best of the best of the United States Gunmakers
Designs the SCAR-H semi-auto rifle, BAR (helped), P90, FN something, who knows, just a tactical gun maker now for U.S. and other european countries. see more on FN Herstal
Designs pretty basically by Browning Arms Co.
Barrett Firearms's .50 caliber semi-auto rifle is the most accurate .50 caliber rifle ever in history while standing also! Can actually blow-up a tank of any kind except the Russian ones, I think?!?!? see more on Barrett Firearms Manufacturing
MG42 German Machine Gun
Best rate of fire machine gun of all historical gun eras. Bad ideas when owning a MG42 gun is it's barrel does overheat badly enough to melt. Also the cons are it is fun to shoot, accurate at 40% range and blows things up immediately!