We use GIS for both the campaign and game map. The game map is then edited by hand because the graphics wouldn't work with the GIS data directly. Here are some examples: I am currently working on the Danube delta area. The screens show the new part of the map, but also how our GIS data interface looks.
Screenshot1.jpg
And now the GIS part. The lighter area of the map is completed (in the sense that it has land, obviously it's not
complete). The darker area is just empty apart from the GIS data that we use as a guideline in the map editor.
Screenshot.jpg
@kai: list of unit types is being expanded as needed for 1943, etc. I don't have anything at hand to post, but I'll see with Nenad if we can post some in-progress stuff on the blog - it's alway nicer to see the actual unit icons rather than dry unit desginations and numbers.
Also, most probably yes, we will be adding a very small number of mechanics - but just to make sure later war scenarios work and no more. What's has been discussed: per-game limit on theater assets, an additional level of entrenchment, limiting elite units effectiveness in some situations (too strong). Nothing is finalized yet, we'll add
only the minimum needed to make the scenarios at hand work historically.