Modern Warfare 2 Perks
It is essential to optimize your custom classes if you want to be effective in Call of Duty: Modern Warfare 2s multiplayer. Not only will you need to choose the correct weapons for your play-style, game type or map, you will also need to consider the best combination of perks for each class. Here are the perks you have to choose from.

To earn the pro version of a perk you must complete challenges related to the standard version.

Marathon

Tier 1

Standard: Unlimited Sprint
Pro: + Climb obstacles faster

Sleight of Hand Tier 1

Standard: Faster reload
Pro: + Aim down sights faster

Scavenger Tier 1

Standard: Full resupply from dead bodies
Pro: + Extra magazines


Bling Tier 1

Standard: Dual attachments on primary weapon
Pro: + Dual attachments on secondary weapon

One Man Army (replaces secondary) Tier 1

Standard: Swap classes at any time
Pro: + Swap classes faster


Stopping Power

Tier 2

Standard: Increased bullet damage
Pro: + Increased bullet damage to cars and Killstreak vehicles

Lightweight Tier 2

Standard: Move faster
Pro: + Quicker aim after sprinting

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: + No red crosshair or name when targeted

Danger Close

Tier 2

Standard: Increases explosive weapons damage
Pro: + Extra air support damage

Commando Tier 3
Standard: Increased melee distance
Pro: + No falling damage

Steady Aim

Tier 3
Standard: Increased hip-fire accuracy
Pro: + Hold your breath for longer when sniping

Scrambler Tier 3
Standard: Scrambles the radar of nearby enemies
Pro: + Delay enemy Claymore explosions

Ninja Tier 3
Standard: Invisible to heartbeat sensors
Pro: + Move silently

SitRep Tier 3
Standard: Reveals enemy explosives and Tactical Insertions
Pro: + Louder enemy footsteps

Last Stand Tier 3

Standard: Survive (on the ground) for 10 seconds after being killed. You can use a pistol
Pro: + Use grenades and equipment as well as your pistol


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