C# first person Cam problems

I hardly can find any good documentations about Cam/Camera function.
ive had it attached to the Player but it is moving too slow or too fast when u alter the FOV or Position.
Is there a way to use the First Person Cam that is provided by GTA?.. when i try to use it, nothing will work.
It seems like it is protected, or i am not calling it right.
Any help is much appreciated.

You cannot manipulate gameplay cams

you can manipulate some things about the 3rd person gameplay camera, not sure about first person though.

Can i not copy all the data of the standard first person mode?

The reason i want to do this, is because i have spotted more then just FOV/Resolution options. and i want to test those out ingame.