First off this isn't Fourth Edition it is Fuzion, which is what I wanted except that they gutted the rules section which is what I wanted. It removed the lifepath options that I found enjoyable as well as the Mekton plug in for building vehicles. I have loved Champions since around third edition and have most of the fourth, fifth and sixth edition books however, and this just could be me, I for the most part have not liked the vehicle rules. So I was extremely disappointed when I was going to use this to work on an anime campaign with mecha and saw how they reworked the entire rules section and for me not in a positive way.