There is a related version called "And was Jerusalem builded here?” which are available at http://www.empressminiatures.com/BCWRULES.pdf
if you want to have a quick look at the authors style, their design and format. I understand that there are differences though. From the author - "I think that I developed the ones on Empress a bit more although it was a few years back so I cannot remember. They [A World Aflame] have been developed even further....actually a great deal further....... and will be published by Osprey next August."
I am thinking of trying them out using them with multiple figure bases.