Although I dont use this class for nuke, I often get 20+ killstreaks with this class.
ACR with Thermal and FMJ - Thermal for a quick camp, and long range bursting, FMJ to get those who duck behind cover a bit too much
Striker with red dot and grip. Red Dot cause it clears firing focal, and the frame of the sight gives an indication on the burst area. Grip for obvious reasons.
Perk 1 - Bling Pro, obvious reasons. Can be swapped with something else, just drop the FMJ and RDS
Perk 2 - Stopping Power, I use this mainly because the ACR is a relatively weak gun even with FMJ. If you use a more powerful gun like the SCAR then use Hardline or Cold-Blooded.
Perk 3 - Now this varies from time to time. Because of the Thermal I usually go for Steady Aim Pro, but recently I've been using ninja, which is surprisingly effective especially when you can hear footsteps on the other side.
That's what I normally use with Care Package, Sentry, then a Harrier, but for a NUKE class, I would replace CP with a Nuke. Mainly because a well placed sentry can rack up to 10 kills and same with the Harrier.
Famas: very accurate, long-range, easy for taking down enemies at a long range. Equip with a holo-sight. Red dot is okay too while acog is a no-no because for some reason it causes the gun to jump around more.
Spas-12: good range, fantastic damage, awesome collateral damage, and great accuracy; only downside is the slow rate of fire. Equip with grip for obvious reasons.
Perks: Scavenger Pro, Stopping Power, (third perk may vary)Steady Aim
equipment:frags, semtex, or claymores are all fine.
Special grenades: flash or stun, either will do.
pave low(does not add toward kill streak)- Keeps enemies bunkered and provides good covering fire, hard to take down.
chopper gunner: quite obvious, you can easily rack up 10-15 kills with this, only downside is that it can't be activated while other aircraft are in the air.
This might seem like on odd set up but it works for me.