(Request) Bandos/GWD guide

I figured ill start off with requesting a bandos guide. I figure that is the easiest and ill learn the rest with do time. Given Ive played a long time but I'm still a weee noob. So to start what are good skills for bandos I plan on melee so what would they need to be around. I would also like range and mage just to know but i prob wont be using that style. How exactly do you do bandos. Also I hear people talk a lot about roles. What are these role and what do they do and whats a quick explanation on how their played. I know the above is a lot but I know nothing of the gwd I haven't even been their and would like to know how to do it and what I'm getting into. Ive seen streams and they only tell so much I would like to know everything so I'm prepared.

I find all the information for you, I'll work on it today. ill try and put it into a simple user friendly format similar to my Pure Guide.