As always I'll use plenty of different classes dependent on the game type, map we're on and what mood I'm in etc. but I can see me setting up something like this:
TDM:
Primary Weapon (Assault Rifle) - Quickdraw, Fast Mag & Suppressor
Primary Gunfighter
Perk 3 Greed
Perk 1: Hardline
Perk 2: Scavenger
Perk 3: Dead Silence & Awareness
Point-streak: UAV, Stealth Choper/Orbital VSAT, Canine Unit (may swap out Stealth Chopper for something else).
Domination/Demolition:
Primary Weapon - Millimetre Scanner & FMJ
Semtex
Tactical Insertion
Perk 2 Greed
Perk 1: Flak Jacket
Perk 2: Scavenger & Toughness
Perk 3: Tactical Mask
Point-streak: UAV, Guardian, Orbital VSAT (may swap out Guardian for higher streak reward).
CTF:
Primary Weapon (SMG) - Laser Sight
Tactical Insertion
Perk 1 Greed
Perk 3 Greed
Perk 1: Lightweight & Ghost
Perk 2: Cold Blooded
Perk 3: Extreme Conditioning & Dexterity
Point-streak: UAV
Apparently the Laser Sight enhances hipfire spread with a much greater effect when compared with previous CoD games and is being touted as one of the best attachments, so if it remains like this the Laser Sight will be one you may want to have.
I'll be using a proper gaming headset with my Wii U so I'll be a bit of a sound-whore hence my picking the two Perk 3 perks on my TDM class.