In Call of Duty: Modern Warfare 3 for the PC, PS3, Wii, and Xbox 360, there is a new set of perks to use. Some are brought from previous games, but most of those are even modified from their previous versions.
As in previous versions, all Pro perks have the same effect as the regular version, as well as the Pro effect.
Not all perks are unlocked by default. Two perks in each tier are unlocked at a specific level.
Tier 1 Perks
Blind Eye – Undetectable to air support and sentry guns
Blind Eye Pro – Faster lock-on with launchers, and increased bullet damage to sentry guns and air support
Extreme Conditioning – (Unlocked at level 22) Sprint for longer period of time
Extreme Conditioning Pro – Climb obstacles faster
Recon – Explosive damage paints the target on the mini-map
Recon Pro – Bullet damage paints the target on the mini-map
Scavenger – (Unlocked at level 39) Resupply ammo from dead enemies
Scavenger Pro – Spawn with extra ammo
Sleight of Hand – Reload weapons 50% faster
Sleight of Hand Pro – Switch weapons faster
Tier 2 Perks
Assassin – (Unlocked at level 27) Undetectable by UAV, heartbeat sensors, thermal scopes, and portable radars
Assassin Pro – Immune to EMP and CUAV, and no red crosshair or name appears when targeted
Blast Shield – Increased explosive resistance
Blast Shield Pro – Resistance to flash and concussion grenades
Hardline – Killstreaks require 1 less kill
Hardline Pro – Every two assists count as a kill towards killstreaks, and deathstreaks require 1 less death
Overkill – (Unlocked at level 47) Secondary weapon replaced with a primary weapon that can’t have attachments
Overkill Pro – Second primary weapon can have attachments
Quickdraw – Faster aiming down sights (ADS)
Quickdraw Pro – Faster recovery from using equipment and grenades
Tier 3 Perk
Dead Silence – (Unlocked at level 55) Move quieter, and the Recon perk doesn’t work as well against you
Dead Silence Pro – No fall damage
Marksman – Identify enemy targets at long range
Marksman Pro – Hold your breath longer
SitRep – Detect enemy explosives and tactical insertions
SitRep Pro – Enemy footsteps are louder
Stalker – Faster movement speed when aiming down sights (ADS)
Stalker Pro – Delay enemy claymore explosions
Steady Aim – (Unlocked at level 30) Hip fire accuracy is increased
Steady Aim Pro – Shorter weapon delay after sprinting
