marks the spot.
The rules say early on full hexes only are playable, but the firefight rules say the germans set up on the -edge-,( as well as the russian replacement)
So, do the Germans set up, say, at G01 and are targetable if the russians can get the initiative and find a clear in range LOS ?
Not a big deal, but 1hex can make the difference at getting to a good secure spot!
No, the units are off map until they enter and have no effect on play until then. The shaded regions in the picture are just for reference; the exact entry locations are printed near the units in the unit manifest.
Not sure about b.