Evasion tank concept, branching from Musketeer.

[Nayto]

I just can't see any character wielding a gun as your front line defense from an enemy. Unless they are rolling a mini cannon around, it is just too weird.

Check out the blunderbuss. Or they could just go full flat out equilibrium on mobs (look up your typical anime game on how logic flies out of the window on this concept).