the dolphin dive is supposed to have a cool down or a delay before firing, i can't remember the source but they said they were balancing it.
it seems like it will be fairly balanced and hopefully it is, my personal wishlish is however.
- no commando, even better no instant kill melee, simply because i get pissed off with all the panic knifing, however i would consider it balanced without commando.
- non replenishable tubes, they'll always be there but if your limited to the 2 you start with its alittle more controlable.
- Ghillie suits, i loved being a bush wookie on every map, i also liked my sleight of hand pro, as long as they have balanced hitmarkers (ie mw2 had balanced mutlipliers)