Meh, I would just stick with the traditional Harrier, Chopper, Nuke setup.
Harriers are ok, but they can be taken out by anyone with an LMG and/or AT4, and they are normally taken down quickly on games like Sabotage and CTF.
Just got a 35 kill streak now, CTF Highrise with M4, tho i ran out of ammo after the tenth kill i picked up an MG4.
The worst thing that pee's me off is that i took off my frickin nuke!!!!!!