The Modern Warfare 3 Perks and Killstreaks were apparently leaked on Saturday. I've seen some other info around which matches some of this so I'd say it might be close to the money. I know from the Survival Mode trailer that Juggernaut is a 14 point kill streak which was listed here.
I also notice that you can no longer 'custom' pick your killstreaks anymore, you choose Assault, Support or Specialist and are given a 'set' list of killstreaks to use based on your choice. Whether this is good or bad we'll have to wait and see but I'm personally happy to see they are changing it up a bit.
IF (and thats a pretty big IF) these perks are correct they're looking a bit different that what we are used to. It looks like our favorite perks have been thrown into a blender just for laughs, there is no true "Ghost" or "Cold Blooded" anymore, the benefits from that original perk are now split between the new Blind Eye - undetectable by air support, and Assassin - immune to UAV, portable radar and thermal & heartbeat sensors.
They've also chopped up the traditional Sleight of Hand between the new Sleight of Hand - faster weapon reloads, and the new Quickdraw - Faster ADS.
There's also no lightweight anymore, you can have more sprint but you cant move faster while not aiming down the sights. Last Stand is also absent from the perks list - thank you Infinity Ward!
For me Sleight of Hand, Assassin and Stalker are looking good with the Assault killstreaks particularly the 15 point killstreak for Juggernaut armour
Here's the full list
Extreme Conditioning- Increased sprint time- Pro Climb objects faster
Sleight of Hand- Faster Weapon Reloads- Pro Faster weapon swap
Scavenger- Replenish Ammo- Pro More ammo off spawn
Blind Eye- Undetectable by Air Support- Pro Launchers lock on faster+do more damage to vehicles
Recon- Explosive damage marks target- Pro Bullet damage marks target(good for call outs)
Hardline- 1 less kill for kill/point streak- Pro 2 assists=kill towards kill streak
Assasin- Immune to UAV, portable radar, thermal and heartbeat sensors- Pro Immune to CUAV and EMP
Overkill- Two Primaries- Pro 2 attachments on your 2nd primary
Quickdraw- Faster ADS- Pro Faster recovery from equipment/nade usage
Blast Shield- Flak Jacket from Bops- Pro Immune to stun/flash bangs
Sitrep- Hacker from Bops- Pro Hear enemy footsteps louder
Dead Silence- Ninja- Pro No fall damage
Stalker- Faster movement while ADS- Pro Delayed Claymores
Marksman- ID Targets from range- Pro Longer Breath Hold
Steady Aim- Increased hip fire accuracy- Pro Faster ADS after sprinting
3 types- Assault, Support, Specialist. You pick which type during class editing.
Care Package- 4 Kills. No Changes
IMS- 5 kills. 3 or 4 landmines that can not be stunned or flashed.
Predator Missile- 5 Kills. No Changes
Sentry Gun- 5 kills. No changes
Precision Airstrike- 6 Kills. No changes
Attack Helicopter- 7 Kills. No changes
Little Bird Flock- 7 Kills. Little bird helicopters patrol the map, possibly tag enemy's or kill them, downside probably no
Little Bird Guard- 9 Kills. Big Helicopter that follows you and over see’s you.
Reaper. 9 Kills- Mortar team with 5 predator missiles.
Talon. 10 Kills- Robotic tank like Homefront.
AC-130. 12 Kills- Sandy Ravages killstreak is back…
Pavelow. 12 Kills- No Changes but possible buff.
Juggernaut Armor- 15 Kills. Become a Juggernaut from Spec Ops.
Osprey Chopper Gunner- 15 Kills. Jump into a chopper gunner, and drops 4 care packages for your team.
UAV- 4 Kills. No changes
Counter UAV- 5 Kills. No changes
Ballistic Duffel- 5 Kills. Gives your team Juggernaut(the perk) so player health is increased to 130.
Hacked Care package- 5 Kills. Drops hacked care package that explodes.
SAM Turret- 8 Kills. Returns from black ops with possible buff.
Remote UAV- 10 Kills. Something like UAV in Battlefield Bad Company 2, target enemies and then shoot them with missiles
Advanced UAV- 12 Kills. Blackbird
Remote Turret- 12 Kills. Sentry gun that you can control.
Stealth Bomber- 14 Kills. Possible buff.
EMP- 18 Kills. No changes.
Juggernaut Armor- 18 Kills. Care Package that contains juggernaut armor.
Escort Airdrop- 18 Kills. Same as Osprey except computer controls the chopper gunner and still drops 4 care packages.
Extra Perk- 2 Kills
Extra Perk- 4 Kills
Extra Perk- 6 Kills
Juiced- Lightweight- 4 Deaths
Martyrdom- Same as previous games- 4 Deaths
Final Stand- Same as old games, Don't know if you stand back up- 4 deaths
Revenge- Person that last killed you appears as permanent dot on radar till killed- 5 deaths
Stopping Power- Last for one kill- 5 deaths
Dead man’s hand- Run around with c4 in your hands and suicide bomb- 6 Deaths