Jon Darlington posted an absolutely amazing after-action report (AAR) on this scenario from 2015 that must be documented here for everyone's benefit:
boardgamegeek.com/thread/1352542/key-cit...tide-iron-stalingrad
This AAR goes into great, turn-by-turn, detail on a play-through, supplemented by informative graphics. I found it entertaining as a story in itself, as well as being useful for suggesting tactics and explaining game play.