Whats the best gun on Rainbow Six Vegas 2?

Answer 1

normally isn't a best weapon for it, its just the weapon that your best with.......

for me its the G3KA4 assault rifle

I know you didn't ask about armor too, but I believe it all depends on what you are comfortable with. I use the SCAR with fire rate set to semi-auto(single shot). However in my opinion it's a matter of reflexes and not weapons, to be the one to kill the man in front of you instead of getting killed. Therefore I use very little armor and try to stay mobile. In my opinion the man moving around and dodging rounds will take the man with the heavy armor 2 to 1. I'm not the best at this game by far, but I do pretty good. It really depends on what your comfortable with. Just try different armor and weapons until you find what works best for you.