I had played a game like that but it was in space, i loved that game and i loved this one. On a next version, put up a squad formation editor with points to spend, good fighters, ok fighters, sentries, defend objective, destroy objective, escort, hunt... ;)
 "SteamBirds"){kind=icon}
 "VK 1939"){kind=icon}
 "Destroy the convoy"){kind=icon}