I've recently been really busy, so I have not been able to work on this for a while but one day after experimenting, I realized I am sooooooo stupid. I just needed to spawn a Missile object at an empty child of the Submarine (so that way the missile always faces the same way as the sub) and put a script on the Missile that (I am so dumb) uses Add force with None,None,4000 (x,y,z). It flies perfectly now with a nice ark and explodes. Except for one thing. The missile will not look as if it is oriented to the path it is on, but is sideways. Ill take some screenshots to show you.