Played it through.
The first battle is a masterpiece mix of history and game-play.
The allied Jabos repeatedly strike infantry targets close to friendly tanks, with only one single incident of friendly fire.
Battle 3 has ghost double units (infantry and Flak-guns) that are actually loaded on trucks - they disappear when the the trucks are unloaded, - I have seen this problem before, but I think of it more as a beauty error than anything else - while you can move the ghost doubles it's tedious to do so because they don't function as "proper" game units. IIRC you can't fight or spot with them...(?)
If the units start the scenario not loaded on the trucks I think the problem goes away - that would mean the player would have to manually load units and be a little slower in jumping off...
Many of the Germany company HQ units have no subordinated platoons so I guess most platoons sort directly under the HQ. I've encountered this too previously - I've seen it appear in campaigns with fixed cores...
Played the Nijmeegen scenario with the Germans not entrenched/the strong XXX Corps tank support version. It's hard. The German force basically melts away...
...I didn't move around too much though, just sat there and got torn apart. Given that the battle is a defensive one for the player with mostly leg infantry it might be an idea to change the German units from FIX to AUX and force the player to think about the battle plan a little more. Much hinges on the initial deployment. (The version(s) where the Germans are entrenched they probably are harder to dislodge...) Maybe make the trucks mobile too...