Silent Hunter 5 Mods

[Convoy Assassin]

Firstly let me say sorry for my lack of knowledge,stupidity,and asking so many questions.I excuse myself by using an old saying "If you dont ask,you wont know"

I have Silent Hunter 5 on disc and had also downloaded Silent Hunter 5 from Steam.

I have tried to install MODS(UltraSubs_v2.0) and could not(me being thick) understand how to use jsgme.

So,trying to be a clever clogs,I just copied & pasted each file such as torpedos,shells,guns,ammunition & weapons into each relevant file.

At first my submarine operated just fine,I could blow up any ship with one or two deck gun shells,sink any ship with any one of the available torpedos and went along happy as larry,then after a few short minutes my submarine went into an unrecoverable crash dive and imploded.

God help me,I am bloody thick at this and really sorry for being a pain in the a*se,in short a PITA.

Can anybody please help a right dimwit with this.............................please