I found these while browsing the internet. they were on the tech game, and their source. Of course, they could be a fake rumor, keep that in mind. And, if real, the perks are not a full list, just a few leaked ones.
Perk 1 :
Feature I: The first feature to the Perk ‘Covert’ stops the enemy from viewing their killcam when they are killed by you. The main feature also prevents deathmarks from being placed when you kill a member of the enemy team making it hard for hostile forces to pinpoint your location.
Feature II: The second feature to ‘Covert’ allows you to remain hidden from enemy UAVs. In addition you will no longer render a red name or crosshair when an enemy is close to you.
Feature III: The final feature is as expected, you remain hidden from all enemy killstreak rewards making it easy to venture throughout the map without having any trouble from any killstreak reward owned by a hostile player with the exception of Counter UAVs.
Feature I: The main feature to the Perk ‘Recon’ allows you to gain killstreak rewards with one less kill than normally required. This is the ‘traditional’ feature to Hardline in the last two games.
Feature II: You can now switch your airdrops one time for a chance to get a better reward by double tapping the Square (ps3) or the X (xbox). In addition you can also capture enemy airdrops faster. And finally you can detect when a hostile has booby trapped an airdrop.
Feature III: The final feature is slightly more complicated. Let’s say an enemy calls in an airstrike, well on your screen you will see a long red line showing exactly where the airstrike is going to hit, this is also shown on your minimap. The same goes for when an enemy calls in a helicopter, you will be able to see exactly where they called it in to. Overall this Perk is mainly for players who want to benefit with their team and on their own depending on which features they choose to act on.
Feature I: The main feature to this Perk allows you to move faster similarly to Lightweight from previous games. Not much else to say about this.
Feature II: The second feature to Specialist allows you to run for a longer duration much like Marathon from previous games. Again, not much else to say on the second feature to Specialist.
Feature III: The third and final feature of Specialist allows you to walk crouched or prone faster.
Feature I: Pretty obviously the main feature to Scavenger allows you to resupply from dead enemies, from this you can resupply rounds and lethal grenades.
Feature II: The second feature to this Perk allows you to resupply tactical grenades and equipment from dead enemies.
Feature III: HAVEN’T DECIDED.
Perk 2 :
Name: Sleight of Hand
Feature I: The main feature to Sleight of Hand allows you to reload all weapons faster. Not much else to it.
Feature II: The second feature to Sleight of Hand gives you the ability to ADS faster.
Feature III: The final feature to Sleight of Hand allows you to switch weapons faster. Not much else to this Perk.
Feature I: The main feature of ‘Reflexes’ allows you to use your knife a lot quicker.
Feature II: The second feature to ‘Reflexes’ grants you less flinch when shot at.
Feature III: The final feature to ‘Reflexes’ allows you to crouch/prone/stand up a lot quicker.
Feature I: The main feature of this Perk doesn’t reduce your recoil but it makes it more controllable and more predictable. For example, it will recoil more in the middle and top rather than to the left and right every so often, this Perk doesn’t decrease recoil, that’s what Grip is for.
Feature II: The second feature to Sharpshooter increases your hip fire accuracy.
Feature III: The final feature to Sharpshooter reduces your idle sway, you can also hold your breath longer if you have a sniper rifle equipped.
Feature I: Allows you to equip three attachments to your primary weapon (default being 2).
Feature II: The second feature to Bling allows you to equip two attachments on your secondary (default being 1).
Feature III: The final feature to Bling allows you to equip two pieces of equipment.
NOTE: This Perk cannot be combined with a Grenade Launcher, and normally Grenade Launchers take up two attachments.
Name: Weapon Master
Feature I: The first feature to ‘Weapon Master’ replaces your secondary with another primary weapon.
Feature II: The second feature allows you to drop no weapon on death.
Feature III: The third and final feature allows you to equip a pistol of your choice along side.
Perk 3 :
Feature I: This Perk is pretty much the pro to Scavenger along with some extra helpful features. The main feature to this Perk allows you to spawn with full ammunition at the start of matches and every time you respawn. Very helpful when it comes to big games, combined with Scavenger this feature makes it dominant.
Feature II: The second feature to this Perk allows you to have up to two lethal grenade slots and three tactical grenade slots. You also spawn with the extra grenades.
Feature III: The third and final feature of this Perk allows you to hold three extra magazines onto your loadout. So if your gun usually holds 200 bullets and each mag was 30 bullets you would end up with 290 bullets, if you combine this with Scavenger it will be dominant over one man army and teamplay operations.
Feature I: Allows you to take no falling damage.
Feature II: You can throw grenades quicker and farther.
Feature III: The final feature to ‘Tactician’ allows you to reset the fuse on grenades when throwing them back.
Feature I: Your footsteps are silent.
Feature II: Enemy equipment no longer affects you unless it’s a proximity explosive.
Feature III: Your knifing, defusing, reloading and etc is now silent.
Feature I: You can see enemy equipment through walls.
Feature II: You can now booby trap enemy airdrops and you can hack enemy equipment.
Feature III: Finally, you can defuse the bomb quicker in bomb based game modes.
Feature I: Enemies who have shown on the radar now last longer before fading, in addition it also shows the direction enemies are facing.
Feature II: You are no longer affected by Counter UAVs.
Feature III: Finally, enemies close to you will get their radar slowly jammed, the closer they get.
3) Mortar Team (1 location)
4) Counter UAV
4) SAM Turret
4) Care Package
5) Precision Air Strike
5) Sentry Gun
6) Artillery (3 location)
7) Attack Helicopter
7) Stealth Bomber
8 ) Harrier Airstrike
8 ) GlobalHawk (blackbird effect)
9) Fire Scout UAV (uav + attackhelicopter effect)
9) Emerygency airdrop (4 Package)
9) EMP (last for 60 sec)
15) Chopper Gunner
18 ) Nuclear EMP (Disable Perks for opponent team for 30sec only, Eletronics and Air Killstreaks wont be destoryed.)
25) Tactical Nuke