Naval games with freedom

[FabulousWin]

Hello dear readers! I shoot torpedo boats from deck gun and it is amazing in silent hunter III but it doesn't happen often, I'm rather stuck with torpedo shooting which is boring that's why I'm looking for games like SHIII where I don't particularly play as submarine but I can shoot torpedo or other small boats and sink them with deck gun. I know war thunder have what I want but please don't recommend such multiplayer games like world of warships or war thunder. I specifically want single player games where I can shoot and sink boats(maybe play with torpedo boat), where I have direct control of naval vehicle but I don't want to shoot torpedoes. I just want to shoot from deck gun. Also please don't suggest me games where I play exact same missions and after I finish I have to replay missions to have fun again, let it be more like SHIII where I can start career mode or have freedom of engaging targets and free roam.

Have a good day!