Where did you get the new rule book and OOB for scenarios?
I didn't. For the OBs, I followed a set of play test rules I got at ConsimWorld Expo in 2006. I filled in the gaps with my own research. I used Glantz, Boevoy Sostav, and Lexikon der Wehrmacht for the combat units; Goff (unpublished) for the NKVD; and Munoz’ Hitler’s Green Army for the weird fascist collaborators. For the rules, well, it's complicated. I've been developing my own WW/CoT based house rules for years now. To that, I again added bits from the 2006 playtest rules, but reverted the naval rules pretty much back to FitE. I fleshed everything out with JMA's Blitzkrieg Unleashed rules, which are available on his site.