I just picked up the first issue of the Urban war rules and was wondering what the game is like. Before I go buying loads of models I just wanted to know how many models I will need, will I need the other issues of the rule book or will the pdf's from their site be enough. I bought the first issue so that the basic rules are handy whenever I need to know something but if all the other issues are just new troop types then I can just copy the stats onto the reference sheet right?

Is there anything else I will need to know before I get into the game and is it worth it or are there better games out there more worthy of my time?