Same, but FPS (especially in CoD) I'd be the guy with the sniper doing 360s etc, K/D isn't important but quality of kills is to me, it's easy to camp with an assault rifle and get kill streak rewards, as for RPG, pretty much the same as yours.
Well I think also new features like breakable wings etc, probably better damage physics etc, hopefully they can sort the red barriers out too? who knows what else may be included in S3...
Same karts, so same speed around 40-50mph, depending on the track (straights etc) as for wet driving, just drive off line, wider lines and don't be afraid to be physical with the steering, sometimes you need to force the kart in and not be afraid, but if you do then do a snapping motion with the steeringzz, and I'd say as for grip, about 40% goes away? as a guess, but if you end up braking on the racing line in the wet, say bye bye to your back end