Sounds like a really interesting and delightfully frustrating game. Bit busy to join at the moment but it’s going on my list for the future.
The comments about the loyalty of the sub-commanders being very strong due to the extremely restrictive information environment reminded me of opposite within the history book Nemesis by Max Hastings.
He covers the end of the Second World War in the pacific. One veteran commented that it seemed that the different commanders and services within the US armed forces were more at conflict with each other than with the Japanese, all trying to get the resources and credit for the successes. (Especially MacArthur in the Philippines).
The radio and news reels of the days could both provide fast information about what is/was happening and also ensure fame and fortune in the domestic environment if your narrative could prevail