Ha Ha Ha! Nice. I still play with lego's however, and I made the Aquitane and some transports and did some weird things with the lego camera... crapy camera, good software. Meh, it's all in good fun.
However, if a game of simple proportions where you could do just about everything, would require huge amounts of attention. And I mean, HUGE! The ability to do anything, which you basically can in war, might take up a couple of gigs worth of gameplay material. However, it sure would kick ass. Earth 2150 came pretty far, with tunnels, trenches, air, sea, land, everything! Anti Missile Defense, shields, everything! Customizable units was a big plus. I think that it creates things very well. Especially since you can destroy some of the environment too, like blow down trees or blow up rocks to make room for buildings. Very nice touch.