I was just thinking that there is another under looked of large/cool units, which is to say buildings and mass building placings. I think that that use of large number of powerful buildings is important. I mean things like space ports, massive immobile defensive forts and (as seen in the video) cannons that can shoot unites from one planet to the next. I also thing that a plan to build massive numbers of buildings is key. A simple editor would allow you to place say defensive walls/turrets or a grid of power generation easily.
Supcom has a system where you can remember structure layouts between games. A similar thing is planned for PA.
