I play wargames in the World War Two period in 1-100 scale, using my HEX RULES system which can be adapted from other sets of rules (basically, I play on a board marked out in hexes like a huge board game- lots of fun). But in this book I have imagined that one or more of the mayor powers in WW2 have designed and built walking tanks, such as the featured BIG BAD WOLF (the BBW). This book details the development of these machines and gives rules to use them on the battlefield alongside the existing types of tanks (T-34s, Shermans etc). I simply add a bit of difference to my WW2 battles and if you play wargames in this period and are looking for something completely different, you might enjoy coming along for the ride. You don't have to use my BBWs, any suitable walking tank model (and there are lots on the market) will do just fine. There are also other HEX RULES books available too, but this book dues contain new rules for the BBW as well as most of the existing rules. Enjoy.