In addition to amphibious bots/tanks and those which are air dropped, a transport unit which disgorges a taskforce from the sea would be great. This would have a larger capacity than any of the air transports due to the limited location it could drop off but be able to unload quickly.
Perhaps even have one faction with a transport which was submersible? EDA most likely!
Perhaps even have one faction with a transport which was submersible? EDA most likely!