Here's an idea for a module that if released, I'd get instantly. A "Commanders Boot Camp" set of small to mid scenarios, aiming to teach the various elements of becoming a good commander. Perhaps graduated from something small to start with, just an infantry battalion with some artillery to practice an assault, for example. Then different scenarios could add various elements such as holding defensive positions and stalling an enemy, parachute drops, synchronised assaults, armour in rough terrain etc etc. Building to something of about Return to St Vith size, with different elements combined. Ideally, there should be a pdf guide to point the trainee commander in the right direction, rather than "I got badly beaten and I have no idea how to win this" (yes, happens to me sometimes!). Something like Daz's St Vith AAR, but only needing 1 page for each scenario. No need for them to be in a single theatre, either. Maps could even be fictional, in order to get across whatever the appropriate training lesson is.