The super cruiser first would have to: become a building when deployed, force all players in the vehicle when undeploying, move all the spawn points and such somehow, and have the turrets be separate enterable vehicles.
The Soviet Super submarine would have to do mostly the same as the cruiser and only be able to deploy or fire when on the surface.
Water only is a bit of a stretch as there would be large rocks in the way of where the cruiser and super sub spawn.
Oh, and you start with only the super ship and sub, which you can get basic infantry and engineers from, the islands which provide protection from the other side could have captureable shored defenses.