Perks
Perk Slot 1
Marathon & Marathon Pro
Ability: No Limit on Sprint.
Pro Ability: Able to move over obstacles quicker.
Sleight of Hand & Sleight of Hand Pro
Ability: Faster reloading.
Pro Ability: Faster Eye to Sight Movement.
Scavenger & Scavenger Pro
Ability: Resupply from players you or teammates killed.
Pro Ability: Able to hold more magazines.
Bling & Bling Pro
Ability: 2 primary weapon attachments.
Pro Ability: 2 secondary weapon attachments.
One Man Army & One Man Army Pro
Ability: Ability to change your class any time during the course of the match.
Pro Ability: Class changes are even faster.
Perk Slot 2
Stopping Power & Stopping Power Pro
Ability: Increased bullet damage.
Pro Ability: Increased bullet damage vs. helicopters and aircrafts.
Lightweight & Lightweight Pro
Ability: Move faster.
Pro Ability: Allows you to do a quick aim after sprinting.
Hardline & Hardline Pro
Ability: Killstreaks require 1 less kill.
Pro Ability: Death Streaks require 1 less death.
Cold-Blooded & Cold-Blooded Pro
Ability: Undetectable by UAV, air support, Sentry Guns, and thermal.
Pro Ability: No red crosshair or name shown when you are targeted.
Danger Close & Danger Close Pro
Ability: Increases explosive weapons damage.
Pro Ability: Increases air support damage.
Perk Slot 3
Commando & Commando Pro
Ability: Increased melee distance.
Pro Ability: You don’t take any damage from falling.
Steady Aim & Steady Aim Pro
Ability: Increased hip-fire accuracy.
Pro Ability: You can hold your breath for a longer period of time.
Scrambler & Scrambler Pro
Ability: Scrambles (jams) the enemy radar in a small radius.
Pro Ability: Delays enemy Claymores, thus allowing you to avoid the explosion if you are fast enough.
Ninja & Ninja Pro
Ability: Invisible to heartbeat sensors.
Pro Ability: Allows you to move silently.
SitRep & SitRep Pro
Ability: Insertions. This will reveal enemy explosives and Tactical Insertions.
Pro Ability: Makes enemy footsteps louder.
Last Stand & Last Stand Pro
Ability: Allows you to survive a normal death. You will drop to the ground and pull out your pistol.
Last Stand ends after ~10 seconds or if you get shot again, which results in your death. You can also crawl in the Last Stand mode.
Pro Ability: You get to use your equipment too, like frag grenades and throwing knives.
