Whose the best marksman in the FF series? You have Vincent, Barret, Irvine, Yuna, and Balthier. I'm not sure if there are any gunners from the previous games so I put other just in case. IMO I think Irvine can win in an all out gun fight against all the others you just can't stop them cowboys. Yuna has to be the noobie when it comes to guns.