Possible MW3 Killstreaks and Perks!

Tier1:
Scavenger -Resupply from dead bodies. pro:Extra mags when spawned.

Lightweight -Faster movement pro:Climb ladders and objects faster

Hardline - one less kill from killstreaks. pro: Increase Kill Streaks Damage.

Healer: Faster health regeneration. pro: Reduces Flinch when shot.

Bling: Allow two attachments to primary. Pro: allow 2 attachment to secondary

Tier 2:
Cold Blooded: Invisable to enemy thermal, and killstreaks. Pro: no red cross-hair

Marathon: Unlimited Sprint. Pro: No fall Damage

Bomb Squad: Reduce Explosive damage. pro: Detect enemy explosives

Overkill: Replaces secondary weapon with another primary weapon.Pro:Switch weapons faster.

Sleight of hand: Faster Reload Time. pro: Faster ADS to all weapons including Sniper rifles.

Tier 3:
Ninja: Silent movement. Pro:Invisable to hearbeat sensor

Tactical mask: Reduce Effect of Flash and stun. Pro: Reveal the position of a flashed or stunned enemy

Steady Aim -Increase hip-fire accuracy. pro: longer breath aiming down a sniperor thermal scope

Scrambler: Jam enemy radar and delays enemy claymore explosions. Pro: Electronics are all disabled in the radius of the player."Emp Effect in the radius".

Quick Reflex: Faster Melee recovery and faster throwing speed of lethal and secondary grenades. Pro:Quicker aiming after sprinting.

Killstreaks

3) Mortar Team (1 location)
3) UAV
4) Counter UAV
4) SAM Turret
4) Care Package
5) Precision Air Strike
5) Sentry Gun
6) Artillery (3 location)
6) PredatorMissle
7) Attack Helicopter
7) Stealth Bomber
Cool Harrier Airstrike
Cool GlobalHawk (blackbird effect)
9) Fire Scout UAV (uav + attackhelicopter effect)
9) Pavelow
9) Emerygency airdrop (4 Package)
11) EMP (last for 60 sec)
13) AC130
15) Chopper Gunner
18) Nuclear EMP (Disable Perks for opponent team for 30sec only, Eletronics and Air Killstreaks wont be destoryed.)
25) Tatical Nuke

Credits: i dunno who but i dont own any