Rocoteh, if you do decide on naming the relevant units, I have the full details, deployments and, where relevant, the numerical nomenclature, for the RN, RM, MN and to a certain extent the USN and IJN (for the latter two, it is more a case of where they are deployed; the names are all there). If you require them, they are yours.
I see what you mean regarding the Eastern European armies; preventing an early war vs the USSR is a worthy goal. I shall give it a good playtest to see how it eventuates.
Another thought that has recently occured has been the use of the deepwater harbour trick to designate certain ports as fleet bases, or convoy points. With a little terrain manipulation, this may be possible.