Call of Duty: Modern Warfare 3 Killstreaks and Perks Leaked?

Assault Killstreaks:

4 Kills – Care Package
5 Kills – IMS – 3 or 4 placeable landmines that cannot be stunned or flashed
5 Kills – Predator Missile
5 Kills – Sentry Gun
6 Kills – Precision Airstrike
7 Kills – Attack Helicopter
7 Kills – Little Bird Flock – Mini Helicopters which patrol the map
9 Kills – Little Bird Guard – Big Helicopter that follows you from above and protects you
9 Kills – Mortar team – Mortar team but with 5 predator missiles – all go off at the same time in different places
10 Kills – Talcon – Mini Tank Robot
12 Kills – AC130
12 Kills – Pavelow
15 Kills – Juggernaught Suit – From spec Ops ( for anyone who sais in the spec ops video he gets it at 14 kills, well thats because he has hardline on)

Support Killstreaks:

4 Kills – UAV
5 Kills – Counter UAV
5 Kills – Ballistic Duffel – Drop Juggernaught perk for the whole team, not jugg suit
5 Kills – Airdrop Trap – Drops a hacked care package
8 Kills – Sam Turret
10 Kills – Remote UAV – Target enemies with missiles
12 Kills – Advanced UAV – Blackbird
12 Kills – Remote Turret – Sentry Gun that you can control
12 Kills – Stealth Bomber
18 Kills – EMP
18 Kills – Juggernaught Recon Armour – Care Package Drop Armour
18 Kills – Escort Airdrop – Drops 5 care packages, one will be hacked

Specialist Killstreak:

2 Kills – You get 1 extra perk
4 Kills – Get another perk
6 Kills – Get another perk

Perks: (+ denotes what is added after earning the Pro version of the perk)

Tier 1:

Extreme Conditioning – Sprint longer distances + Climb obstacles faster
Sleight Of Hand – Reload faster + Faster weapon swapping
Scavanger – Reload ammo from bags + Spawn with more ammo
Blind Eye – Undetectable from air support + Faster launcher lock on and extra damage to air support
Recon – Explosive damage marks target on HUD + Bullet damage marks target on HUD

Tier 2:

Hardline – One less kill for Killstreak + Two assists count as a kill towards next killstreak
Assassin – Immune to UAV, Motion Sensor, Thermal and Heartbeat Sensor + Immune to CUAV & EMP
Overkill – Two primary weapons + Second primary can have 2 attachments
Quckdraw – Faster aim down sights + Faster animation of using equipment and throwing grenade
Blastshield – Flack Jacket (Immune to most explosives) + Immune to stuns and flashes

Tier 3:

Sitrep – Enemy equipment is visible + Enemy footsteps are more clear
Dead Silence – Your footsteps are silent + No fall damage
Stalker – Faster movement with ADS + Delay on claymores
Marksman – ID target from range + Longer hold breath on scoped weapons
Steady Aim – Increased hip fire accuracy + Faster aim down sight while sprinting.