There are only a few roads into that northern area. If you can get some eyes and some firepower covering those roads, also maybe some fascams, ambushes might take a heavy toll on any enemy forces hurrying to reinforce and in the open. So isolation sure sounds tempting.
Many people think there aren't many variations to attack, defend and meeting engagements.
My hats off to you on the standalone and campaign scenarios. In particular, I have been impressed by the campaign games. I have played the entire Russian campaign one and a half times, 3 games of the German campaign and half way through the first American campaign game. I have really enjoyed the variety of situations and interesting maps. Lot of fun. So if it takes a bit of devilish inspiration to produce such absorbing scenarios, I say give the devil credit. [;)]