Here's an idea of a mega bot, experimental, etc, type unit. Role: As the title says it would be a mobile unit that could hunker and turn into a factory. It can also traverse to different planets; thus making its main role setting up bases in a fast manner on multiple planets. It would be fairly tanky as for as its livability goes. Weapons: The idea i had was that while mobile it could have long range support turrets(Similar to the megalith turrets in FA but weaker). This would allow it the ability to move around on the planet its on for ideal base location without being completely defenseless. However it would need to have low enough dps so that its is in no way a one man army, thus making it wise as well as necessary to escort it with other units. While Hunkered(aka factory form)i see it as having 1-4 pd and a couple AA towers to help it remain safe while it begins it manufacturing of engis and other such units. The type of factory i haven't thought of yet.
So like an interplanetary Fatboy? That's interesting, but how would you move it around to other planets? We have heard of unit teleportation, but that requires tons on energy and would be used for smaller scale units. And a factory sized tank would be too big for a rocket to carry.
If you can move moons and astroids around with rockets engines i wouldent be to suprised if a factory sized tank can move between worlds with some kind of inbuilt giant rocket engine.
I'll put my vote in for a supra-orbital cannon instead. Shoot your construction bots* to infinity, and beyond! *Bots may land head first on arrival. Cosmic rays may cause cancer. Do not operate heavy machinery while drunk.
Why dont you power up a metal planet then smash a load of factories on it and some engines. You'd have an interplanetary doomsday factory
Sounds cool, and useful for invading a hostile planet. For example, you send in the initial wave then get your Interplanetary Factory on the planet, and start reinforcing your front lines. I think it's an awesome idea