It's sooo hard to game when you are reffering to several different books. You need the core rules, which in itself are jump abouty. Basic rules here, advanced rules is a comoletely different section. So you read, then thumb forward. Go back, then thumb forward.
Then as you say rules. Gand War one is a must. Then there are bits and bobs in other gang wars. 3 being important but whatever scenario's you pick from several books. Updated weapon rules, Blaze, for example, has changed.
I like to get to know rules. This is nuts. Plus Venators, just too good.