It seems like this is a topic that gets raised about every computer wargame that comes along. That and maximum deployable troop levels per scenario. I was reading some WWII government stuff that refers to attack fronts typically used in combat. They refer to company-sized fronts as 330-500 meters and battalion-sized at 400-1100 meters. Interestingly, all those Close Combat maps which seemed so undersized turned out to be about right for company level deployments. My feeling is that huge maps aren't very useful unless you've got the troops to fill 'em up, but there are always unusual situations. Plus, why limit yourself if it's not necessary.
I'm playing the Stalingrad CC mod right now, and it's a blast....it's just a shame that no one can up the troop unit count from 15 because newer computers could easily handle 3+ times as many on-screen units. Apparently Mattel or whoever holds the rights to the series refuses to release info related to the game code. Pity.