Blogsite mw2blog.com have an un-attributed list of the multiplayer perks that will be available online in Modern Warfare 2. When Kotaku contacted Infinity Ward’s Robert Bowling for an official statement, he released a tweet reading: “Can’t confirm nor deny any leaks for #MW2. Official stance is to just wait and discover the awesome yourself on November 10th.” Source: mwblog

	Marathon	Tier 1
	Standard: Unlimited Sprint Pro: + Get over obstacles faster
	Sleight of Hand	Tier 1
	Standard: Faster reload Pro: + Aim down sights faster
	Scavenger	Tier 1
	Standard: Retrieve ammo from dead bodies Pro: + Extra magazines
	Bling	Tier 1
	Standard: Dual attachments on primary weapon Pro: + Dual attachments on secondary weapon
	One Man Army	Tier 1
	Standard: Swap classes at any time Pro: + Swap classes faster
	Stopping Power	Tier 2
	Standard: Increased bullet damagePro: + Increased bullet damage to cars and Killstreak vehicles
	Lightweight	Tier 2
	Standard: Move faster Pro:
	Hardline	Tier 2
	Standard: Killstreaks rewards require 1 less kill Pro: + Deathstreaks require 1 less death
	Cold Blooded	Tier 2
	Standard: Undetectable by UAV, air support, sentries, and thermal Pro:
	Danger Close	Tier 2
	Standard: Increases explosive weapons damage Pro:
	Commando	Tier 3
	Standard: Increased melee distance Pro: + No falling damage
	Steady Aim	Tier 3
	Standard: Increased hip-fire accuracy Pro:
	Scrambler	Tier 3
	Standard: Scrambles the radar of nearby enemies Pro:
	Ninja	Tier 3
	Standard: Invisible to heartbeat sensors Pro: + Move silently
	SitRep	Tier 3
	Standard: Insertions. Reveals enemy explosives and Tactical Insertions Pro:
	Last Stand	Tier 3
	Standard: Survive (on the ground) for 10 seconds after being killed, pistol equipt Pro: + Use grenades and equipment aswell as your pistol