I think the beauty lies in simplicity. The very basic concept leaves a lot of variation for tactics and role playing. Complicating the mechanics may be bad for the game in the long run. What changes would you propose?
Imho, the only reason people don't use swords, is because they have a 1hit kill weapon.
Basically use blunder bombs jump around and use shotgun. This is what ruins the PVP. Shotgun should have reduced bullet spread, but also deal less damage. I'm fine with that thing doing 80% or even 90% damage, but having a 1 hit kill weapon is a no brainer for any pvp orientated pirate.
Do you know a single person who could win against anyone with only a sword?
Only a pistol?
I can see the sniper working out, however a lot of tactical positioning would be required.
In any PVP game, if one weapon outshines the rest, the balance is poor. The only set back is that shot gun has small range, but realistically speaking, how worse that range is compared to pistol (PVP). Not that much imo.
Would really appreciate a nerf to shotgun and have pirates playing with the weapons that they like and feel better with, instead of having 1hk meta gun.