Perk 1
Lightweight - Move Faster (Pro)
Scavenger - Pick up ammo from fallen enemies. Replenish lethal grenades. (Pro)
Ghost - Undetectable by the Spy Plane and the Blackbird.
Flak Jacket - Reduces explosive damage.
Hardline - Killstreaks require 1 less kill.

Perk 2
Hardened - Bullets penetrate better.
Scout - Hold breath longer.
Steady Aim - Increased hip-fire accuracy.
Sleight of Hand - Faster reloads.
Warlord - Equip two attachments to your primary weapon.

Perk 3
Marathon - Longer sprint.
Ninja - Silent movement.
Second Chance - Pull out your pistol before dying.
Hacker - Ability to detect enemy equipment and explosives.
Tactical Mask - Reduces the effect of flash and concussion grenades.

Killstreaks

3 - Spy Plane
3 - RC-XD (remote bomb)
4 - Counter Spy Plane
4 - SAM Turret
5 - Care Package
5 - Napalm Strike
6 - Sentry Gun
6 - Mortar Team
7 - Attack Helicopter
7 - Valkyrie Rockets
8 - Blackbird
8 - Rolling Thunder
9 - Chopper Gunner
11 - Attack Dogs
11 - Gunship