Watercraft

Watercraft are Vehicles used in and on water, including boats, ships, hovercraft, and submarines. Watercraft usually have a propulsive capability (whether by sail, oar, paddle, or engine) and hence are distinct from a simple device that merely floats, such as a log raft. Watercraft is the oldest type of vehicle, having been used since ancient times and is constantly updated with ever evolving technology.

vulnerabilities and immunities

Most watercraft are vulnerable to lightning, fire and explosive damage. This means that these damage types are doubled upon a hit. Watercraft have a total immunity to psychic, necrotic and poison damage, given that they are neither organic nor have any kind of inherent intelligence. However, the driver or passenger(s) can still be damaged by these types if they are targeted and the vehicle is not armored. Armored watercraft usually have resistance to non magical piercing, slashing and bludgeoning damage on top of the usual vehicle resistances. The driver and passenger(s) of an armored vehicle are also protected from these damage types as long as they remain inside the vehicle.

disabling and destroying

like other vehicles, a watercraft may be disabled by bringing it to 0 HP. If it's HP geos too far below 0 it may sink or explode, possibly both. If the watercraft is carrying munitions, it is likley to explode and cause severe explosive damage over a wide area.