We haven't envisioned naval units yet, because this is primarily a land warfare game. Generally, units that dynamic AI cannot use now, and probably never will be (such as recovery vehicles) might only appear when we include AI scripting for specific human-made scenarios.
Paratrooper probably won't be introduced because realistically they usually need as much as few hours to reassembly and reorganize after being scattered following a large scale drop, plus tactical airhead operations often involve the air-landing of heavy equipment, supplies, and supporting/reinforcing units to consolidate and exploit the initial lodgment. There might be some small-scale exceptions like Rhodesian Foreforce Paradaks, but those are very conflict-specific.
On the other hand, heliborne troops are planned.
Armored Brigade Database Specialist