
Standard: Move faster.
Pro: No falling damage.
Scavenger

Standard: Resupply from dead bodies. Does not resupply launchers or equipment.
Pro: Doubles your starting ammo with extra magazines, replenishes tactical grenades.
Ghost

Standard: Undetectable by Spy Plane and Blackbird.
Pro: Undetectable by aircraft, Dogs, Infra-Red and Sentries. The enemy won’t see your name or a red crosshair when targeting you.
Hardliner

Standard: Killstreaks 1 kill early.
Pro: Get a second chance on the result of care packages.
Flak Jacket

Standard: Extra explosives resistance.
Pro: Extra fire resistance and reset fuse when you toss back grenades.
Hardened

Standard: Extra bullet penetration.
Pro: Bullets do extra damage to Aircraft and Turrets. Reduced flinch when shot at.
Scout

Standard: Hold breath longer.
Pro: Switch between weapons faster.
Steady Aim

Standard: Extra accuracy when shooting from the hip.
Pro: Quicker aiming after sprinting and quicker recovery from knife lunge.
Sleight of Hand

Standard: Faster reload.
Pro: Faster aiming down sights with non-scoped weapons.
Warlord

Standard: 2 attachments on primary weapon.
Pro: Start with one extra lethal and tactical grenade (except smoke).
Marathon

Standard: Longer sprint.
Pro: Unlimited sprint.
Ninja

Standard: Move silently.
Pro: Louder enemy footsteps, makes you completely silent.
Second Chance

Standard: Pull out pistol before dying.
Pro: Survive longer and any team mate can revive you.
Hacker

Standard: Detect enemy equipment and explosives.
Pro: Booby trap enemy Care Packages and turn enemy killstreaks and equipment friendly.
Tactical Mask

Standard: Reduce the effect of Flash and Concussion grenades.
Pro: Reduces the effects of Gas and Concussion grenades. Reveals the location of a flashed or stunned enemy.