On Star Trek First Contact, when the cube explodes, a Borg Sphere escapes. What if Borg Ships are built from Borg Cubes? Borg ships have hangers for assimilating ships. What if the cube is like a shipyard. It would also be cool to see your ships, when they need repairs, to go inside the cube, get repaired, then come out. Cubes should also be able to be recrewed (like a station). Maybe the holding beam should pull the ship inside for assimilation.
    I think Borg Diamonds should be built from stations. Or maybe they constuct stations. In order to build a Borg starbase, the diamond would build the station around itself, and become a part of the station. It would also be cool to see it seperate from the starbase and reintigrate. Just like on the show!

Same here, excellent idea 

Borg Ships building others is easy, but makes it like a shipyard (cannot jump straight to it by clicking the info bar). My stock game has it for the Borg 'Command Cube' but it also seems to have screwed how an AI uses it.

... of course that would bring up the age old adage: what came first, the nanite infected chicken or the hybridized egg?

Got the Game, Seen the Video. It's just amusing, not true. It does show the natural stupidity of Vulcan Logic, though (replace the Queen? She's nuts!).

I think it would be really cool if the borg started out with a small starbase. Instead of having consturction ships, the starbase would simply be upgraded with newer additions (to slowly begin looking more like a unicomplex (as seen in Voyager). These new upgraded additions would act as the science stations, weapons platforms, etc.

As for ship construction, I suppose smaller scout type vessls could be constructed within the unicomplex. But larger vessels (like spheres, cubes) could be constructed with attached transwarp gates. There were be 2 or 3 sizes of gates, and each size would created different style vessels (with the largest being for a cube.) This eliminates the whole dilemma of 'how to build ships' by simply opening up a transwarp apperture and having vessels emerge from the gates.

I suppose there could also be 1 vessels that focuses mostly on constructing turrets and sensor arrays... but the borg don't really use those. As the unicomplex gets upgraded and becomes larger, it would also have more weapons added to it.

This to me seems most realistic. To damage the base, the player could either target certain portions of the base... or attack the central section of it that holds it all together (the hub, original starbase, but highly armoured) and ocne that is destroyed... the entire complex would explode with it. Once the borg's main base is destroyed... they have no way of reconstructing and the collective gradually falls apart.

Like I said, I think Borg cubes & other ships come from assimilated ships. But that would be too complicated for the A2 engine, so it would be easier to transwarp or warp them in.

Maybe the cube is just one huge moving station. What if the constructor built it and the cube would build other ships like a construction yard. It could also research things (like a tactical cube hull) and improve it's systems and defenses. I think it would be extremely cool to be able to target different parts of the cube. The central plexus, the vincilum, power nodes, research pods, you name it.