Here is a large snip from the OXM article taken from Kotaku on MW3 Perks and what not, enjoy. Also i have not read yet, just delivering the news.
Those of you who've taken a beating at the hands of Tactical Nukers will be pleased to know that the infamous map-clearer is no more. Don't expect too much of a let-up on the ballistics front, though, as there are B2 Spirit bombing runs, remote
mortar strikes and precision airstrikes to fill the gap. Here's Kotaku's (partial) list of killstreaks:
EMP Grenade: Temporarily takes out all area electronics.
Littlebird: A tiny remote-controlled helicopter.
Precision Airstrike: Calls in an airstrike on a targeted area.
Stealth bomber: Calls in a B2 Spirit to carpet bomb along a line designated by the player.
Remote Turret: A remote controlled turret.
Directional UAV: A UAV that can be directed into areas to scan for enemies.
Remote Mortar: Direct a mortar team using a zoomable camera view of the map to call in strikes.
Airdrop Trap: A booby-trapped airdrop.
Ammo Resupply: An ammo reloading airdrop.
Escort Airdrop: A protected airdrop.
Specialist Strike Package: This one remains a mystery to us.
On the Perks front, points of interest include a buff that stops remote-implemented death from above counting towards an opponent's killstreaks, and an intriguing new radar type. Without further ado:
Blind Eye: This makes you immune to computer-controlled and player-controlled killstreaks. The pro version makes your launchers lock on faster and gives you extra bullet damage to vehicles.
Assassin: This makes you immune to UAV, thermal, and heartbeat sensors. The pro version also makes you immune to CUAV, EMP and no longer shows your name in red or the crosshair in red when you're targeted.
Point Guard: Every two assists count as a kill towards your killstreak.
Dead Silence: You make no noise.
Recon: Gives you a special kind of radar to spot enemies, most likely. We're not sure on this one.
Finally Team Perks are exactly what they sound like - enhancements that apply to entire squads. Kotaku's not entirely clear on how you'll earn them, but it sounds like all players will need to work in concert, rather than cranking out EXP on their lonesome.
Here are four to chew over:
Stopping Power: Increased bullet damage.
Blast Shield: Unclear
Health Regen: Regenerate health over time.
Stun Protection: Prevent stunning from flash grenades.