After 3 months... I'm finally done with this project, it's not perfect at all, but I got the job done anyway.
Originally I wanted to install some ballistic missiles on the submarine( and I'm done with them), yet due to various reason, such as bugs in game, and game's own property, I wasn't able to. So I left the space so that I could modify that one day. Now it's just like the real sea wolf in life- only be able to launch torpedos(in game, its rocket pods)
Trim up for diving ( pleaaaase do it slowly other wise the ship may flip to one side)
AG 6 for activating torpedos(rocket pods)
Enjoy, and thanks for supporting me and upvoting this!