flintlock OR musket? but a flintlock is a KIND of musket... :P
Viewing post in boats. lava boats. naval mode.
I guess it's a kind of musket pistol, so either a flintlock or a blunderbuss, they should probably fire unblockable, short ranged, Grenade Fragments, so they could deal a LOT of damage, but would have a slow reload time and would be relatively short ranged, about 6-8 spreading shots at a time sounds good.