Closest class to Gunslinger?

Hey there, my wife and I are new to the game coming over from blade and soul. She used to play their gunslinger class and she got really attached to the rapid fire and high health aspect. It doesn't have to be with guns but she really wants a class that is a tank with rapid fire abilities, any suggestions?

Not an exact match, but Gunbreaker job for "tank" and Machinist job for "Range Physical DPS".
Both use a form of gun for a weapon.