Add Space Ships to Ground Battles

In the trailer, you see these massive space ships move through cities with infantry shooting them. I love this idea, and would like to see it implemented into ground battles. To balance this, there'd probably need to be a special module (like 'atmospheric thrusters') added to allow a ship to participate in them.

I'd imagine Aircraft would counter Spaceships, and perhaps Carrier ships could use their own in the battle.