...snippets of intel seems minimal. Was that true in the actual war?
It just seems a air recon card would fit well in this system for each theater.
still allot to learn yet.
Aeriel recon in WW2 did not, as a rule, provide much useful information about enemy force strength or composition. It was useful to give a very general picture of troop movements, or fixed fortifications and other military installations.
At a theatre commander level, an "intel" report would be a composite of intelligence gathered from many sources: aerial recon, prisoners, signals intercepts (& codebreakers), spys, etc. Even then, huge troop movements, including tank divisions, can and did move unnoticed by the enemy very close to front lines.
Cases in point: the huge Soviet preparations for Operation Uranus, and even more impressive, the German preparations for the Battle of the Bulge. Both operations involved moving whole tank armies right up to the front without the enemy having much of a clue. And in both cases, that enemy had air superiority.
If anything, recon is far too generous in DC3, as it is in most wargames! In DC3, would be good to have a "realistic" FOW option, in which you should be able perhaps to see unit ID, and a very rough estimate of strength, but no other details (readiness, supply etc). Have a look at some of the situation maps from the era to get a sense of how much info the commanders actually had...