For undefended maps, Nod's stealth units tip the scales a little too much in their favor. If you don't agree, just wait until you have 6 beacons deployed at once and even with plenty of teammates defending your base. An organized Nod team on a couple of the maps is nearly impossible to defeat. You often simply have no chance of seeing them unless you walk into them by accident. A stealth black hand coming out of an exploding vehicle is nearly impossible to track down due to the smoke.

Still, I get thrown on the GDI team more often than now (something like 1.8 to 1, as a guess) but I still maintain a winning record (it's close to even but I think I have something like 14 wins to 10 losses.