The main problem with Nordwind is the large number of flags and their completely random placement. Especially the Village flag is completely useless and most of the time both teams advance in pretty much identical fashion (which is good, it's just that the Village flag breaks the thing). Usually the Axis capture the Bunker, Allies the Estate and then they both continue into the town.
This is how I would change the structure of the map:
Remove the Village flag completely and expand the map horizontally. Move the Axis base to the Northwest, while the American base goes Southwest. This way you can still have free conquest but the battle gets a much more logical order without pointless running around.
In addition, a lot of the flag zones are really closed up and getting into them requires the player to circle around the flag to find and entrance (sometimes quite far away). The player should be able to get to the capping zone without much fuffing around and it should feel intuitive.