Yeah, SOS is an awesome title. Now we'll be begging for PRICE OF HONOR but also a late-war version covering the 1944 and 1945 tactical situations. After that, who knows? I personally dream of hedgerow fighting and scenarios drawn from tactical actions in Hurtgen Forest, OPERATION MARKET-GARDEN, and others! (Note I did NOT say the Battle of the Bulge--YET!)
Have you found a resource for # / type of rounds for vehicles? I would not use ASL as a reference, personally. That may take some digging; I'd suggest official sources like CMH [ask 'Smitty' here on CSW], or the official Wehrmacht histories [you would know better than I whom to ask!]. A lot of work, and unfortunately I am located 2+ hours from nearest [decent] university library.