you have the best naval gameplay out of anyone, absolute pleasure to watch when players are on the cannon, can you snipe through the cannon? or do you have to aim at the player hitbox behind the cannon?
its kind of similar to cannons, you just shoot and watch your shot. if you miss you adjust lead accordingly. furthermore you can use parts of the ship as way points as well, like: harpoon, first lantern, wheel, anchor, bare,l ect ect. dont quick scope for far shots, take your time and line it up. if they are close enough that your just aiming for their hit box you can sprint cancel or double drop cancle or whatever to reload faster.