Begin rant:
Just ordered Total Chaos from DriveThruRPG. Not worth $18 in PDF form. Only 3 new units and 30 new scenarios in a 258 page book. I could see a print version being $18, but the PDF... kind of a rip off. Also, there is already a good bit of errata posted in the errata forum. If you are going to force your fan-base to be fact checkers or editors, give them a break on the PDF cost. This is a $8 PDF at best.
:End rant
Recommendation: If you have all the Jihad books and Turning Points, don't bother with this product. You are not missing much as it is just a reprint of the chaos campaign tracks in those products. Yeah, there is a little bit of new stuff sprinkled in, but it is not worth the price.