From: east coast, usa
Hi Mike- thanks for your interest. Everything was researched, and for the Naval Support very little was found. Of special interest was how far inland did the hand of the Naval Guns reach? Reading official histories didn't reveal any official guidelines/restrictions/zones, etc. Individual stories indicated that Naval Support did not extend much beyond what the Navy could see. While they did use Spotters, it seemed that in practice they weren't fond of distant support. Therefore, the ranges were not modified to 1k standards.
Similarly, the Allies were never into rushing around, so giving them movement allowances commensurate to the 1k map would make it a very different campaign. [There is a TOAW Normandy scenario that has standard movement allowances of 40 for Allied units, and as you can imagine it make the campaign play quite different from history].
I should add some commentary to the Briefing, thanks for pointing this out.