Who is V?

Ive been trying to keep my V as accurate to the trailers and to the game. What I mean by that is that I only use clothes V actually wears in any of the official footage or also guns V canonically acquires through the main story line. That however made me wonder if there even is something like an actual canon for V. I certainly think that one of the three life paths had to be there first which I then would at least consider my headcanon because it would have laid the foundation to the character. It doesnt stop with life paths though what Guns, Cars and Cyberware does V officially acquire. My english isnt good enough to properly type out my question, but I believe you get the Idea that I have. V is such a nice and complex character id love to just know more, at best everything there is about him. Itd be nice if some of you helped me out with this, maybe you know what a lore accurate V would use for his lore accurate shinanigans ^'

hope this reaches some, thanks chooms