Can i do this?

Can i just say screw it and host my game from my VPS (virtual Private Server)? or do i gotta get like electroserver or some of that stuff

and can i get a tut on how to use Unity Networding???

You do not have to use electroserver or any program of its type, but in most cases(all?), it is very helpful.

My favorite tutorial, and I believe many will agree with me is the Zero to Hero guide: http://forum.unity3d.com/threads/29015-UniKnowledge-entry-Unity-Networking-the-Zero-to-Hero-guide

Okay ill check it out thanks Dman your very helpful