Now I know you said you were concentrating on land combat, but eventually if you wish to incorporate what is learned from the public beta of RTV into Bitter Glory then you will need to expand into the area of air/naval interaction.
Bitter Glory will be a Grand Strategy game with a lot of micromanagemant (automatisation will be possible). BG is other kind game than RTV. I hobe you'll enjoy BG when will be ready
I would suggest that you should start working on those mechanics right away.
Hmmm... work is in progress
Most games fail to provide a good naval system
I'm team naval maniac

Naval combat will be one of our strong aspects
War, war never changes... but are you sure?
Bitter Glory
Put an apple in your mouth, we'll play Wilhelm Tell - "Hawkeye" Pierce to Frank Burns