I was initially inspired by the Ghosts of Obeedah to come up with a river patrol boat armed with battle armor weapons. However, I think this is better abstracted and the most obvious comparison I could come up with is the difference between vehicles and different shades of 'medium' or 'heavy' infantry.
To that end I propose these units that will provide easy river troops for any scenario to operate alongside monitors and sea skimmers or storm the beaches in your own 'totally not D-Day' scenario.
Common Rules
Movement Restrictions - Can only travel along the surface of the water (including Water Depth 0 except the PT Boat) and are subject to all rules as a surface naval craft. Unless otherwise specified all Naval Infantry have a Ground MP of 1 and become either a Foot Infantry or Engineer unit like any other.
Special Units (All units follow the same rules as their standard types)
Motorized - Naval 'Motorized' units operate swift and silent personal or two man watercraft. Many adversaries have been caught by surprise due to sabotage or commando raids on their sensitive infrastructure from the water.
Speed on Surface MP 5 / Max Squad/Platoon Size - 6/18
Mechanized (Hydrofoil) Landing/Boarding Craft - Landing Craft are lightweight and somewhat flimsy vessels deployed from surface (or even submarine) vessels to transport soldiers and personnel to the shore as quickly as possible. They are the equivalent of 'wheeled' medium mechanized units and as such suffer from mobility penalties with more than one support weapon per squad. Speed on Surface MP 5 / Max Squad/Platoon Size - 10/30
Mechanized (Displacement) Patrol-boat - Patrol Boats are heavily armed but relatively slow vessels optimized for endurance and firepower over speed. Unlike their Tracked Mechanized counterparts they can accept 3 Support Weapons as long as the Squad Size can support them without suffering mobility penalties. Unfortunately due to their deeper draft they cannot pass through Water Depth 0 hexes. Speed on Surface MP 3 / Max Squad/Platoon Size - 10/20
Mechanized (Amphibious Tracked) AAV - Unlike other Naval Infantry troops these Mechanized units operate alongside or within an Amphibious Assault Vehicle. These large tracked vehicles are slow due to their hybrid propulsion system but like other Tracked Mechanized units can operate two squad support weapons without a mobility penalty. Speed on Surface/Ground MP 2 / Max Squad/Platoon Size - 10/20
