Guys. When I suggested vehicles and outdoor maps and such, I implied a total revamp of NS. Surely, vehicles aren't going to fit in present maps with present aliens.
Like they say, NS was battle, NS2 will be war. Or something like that.
Aliens should be adjusted to outdoor combat and open areas, more so than they are now. That way, you can have bigger maps, more players, more fun!
You cannot possibly change one thing drastically and expect everything to stay balanced. Either keep everything, or change everything. Latter option gets my vote!