Perks

These are the perks you can use in the Modern Warfare 2 multiplayer mode. Many (if not all) perks can be upgraded to a PRO version.

Perk Slot 1
Marathon
	Unlimited Sprint PRO: + Climb obstacles faster.
Sleight of Hand
	Faster Reloading PRO: + Faster Aim-Down-Sight
Scavenger
	Full resupply from dead bodies PRO: + Extra Mags
Bling
	2 primary weapon attachments. PRO: + 2 Secondary weapon attachments
One Man Army
	Swap classes while alive PRO: + Swap classes faster
Perk Slot 2
Stopping Power
	Increased Bullet Damage PRO: + Extra damage vs. enemy vehicles.
Lightweight
	Move Faster PRO: + Quick aim after sprinting
Hardline
	Killstreaks require 1 less kill PRO: + Deathstreaks require 1 less death
Cold-Blooded
	Undetectable by UAV, air support, sentries and thermal PRO: + No red crosshair or name when targeted
Danger Close
	Increases explosive weapons damage. PRO: Extra air support damage
Perk Slot 3
Commando
	Increased Melee Distance PRO: + No Falling Damage
SitRep
	Detects enemy explosives and tactical insertions. PRO: + Make enemy footsteps louder
Ninja
	Invisible to heartbeat sensors. PRO: + Your footsteps are silent
Steady Aim
	Increased hip-fire accuracy PRO: + Hold your breath longer (snipers)
Scrambler
	Scrambles (jams) the enemy radar in a small radius PRO: + Delays the explosion of enemy claymores (3 seconds)
Last-stand
	Pull out your pistol before dying. PRO: + Use equipment in last stand.