well i got to talking about this on my stream...
and after talking about what a game changer that can be a civilian is, but is really a gamechanger, a mobile construction ship is hardly a gamechanger. Sure it brings some more options but not really changes the game as we know that bases can be moved and buildt.
But what can be a game changer.
What about a ship that can open short term stable wormholes. It would probably be rediculously expensive to operate and run, it might require 2 ships, one at either end. But it would definitely change the state of the game, as you can now employ alternate tactics, avoid normal lanes and traffic, and do surprise attakcs.
i think that is a real option for a true game changer.