Wow man, that was some fantastic work.
Would you be able to expand a bit on what was involved in terms of CG? What program was used? Does it take ages to learn how to do some of those visuals?
My brother Ed was in charge of the 3D work which included things like the beginning aerial shot, smoke bomb, overhead corridor scene and the flying bots. He modeled and animated in Maya. He's been modeling in 3D programmes for a few years now professionally so I don't think it's something you can do in an afternoon but hey you gotta start somewhere.
I then took the elements tweaked the grain, colour correction and composited them all in after effects. I'm no expert by any means in AE but I find just throwing yourself into to it and biting off more than you can chew normally forces you to learn as you go.
I'll try to do a few FX breakdowns with my brother as soon as he's back from holiday.
Cheers