FSX Royal Navy HMS Ocean L12. HMS Ocean is a amphibious assault ship (or landing platform helicopter), currently serving with the Royal Navy. It is known as 'The Mighty O' and this model brings it to FSX for you. This model has fully landable deck, and has some detailing. This release gives you a fully drivable model of HMS Ocean, multiplayer enabled allowing other players to land on the deck. Also, released is a static bgl file, allowing you to place HMS Ocean where you need her. By Matthew Kingscott / MSPG Simulations.