Perks are passive bonuses that help the player and his play style. Be invisible to UAV, Run and move faster, handle your weapon faster, or even tack enemy footsteps.
Perk Tier 1

Afterburner
Thrusters have faster recharge rate.
Unlocked: Default

Blind Eye
Cannot be targeted by enemy aircraft weapon systems.
Unlocked: Unlock Token

Sixth Sense
Display a mini-map indicator with the direction of nearby enemies.
Unlocked: Unlock Token

Flak Jacket
Take less damage from enemy explosives.
Unlocked: Level 5

Overclock
Earn your Specialist Weapon or Specialist Ability faster.
Unlocked: Level 20

Ghost
Cannot be detected by enemy UAVs while moving, planting or defusing bombs, or while controlling Scorestreaks.
Unlocked: Level 38
Perk Tier 2

Fast Hands
Swap weapons faster and aim faster after sprinting.
Unlocked: Default

Ante Up
Spawn in with a starting bonus to your Scorestreak meter.
Unlocked: Unlock Token

Hard Wired
Immune to Counter-UAV, Power Core, EMP Grenade, and Smoke Screen. Won’t trigger Trip Mines, Shock Charges, or C4 alarm. Reduce your digital imprint against enemy Tracker and Sixth Sense Perks.
Unlocked: Unlock Token

Tracker
See a digital imprint of enemy footsteps.
Unlocked: Level 8

Cold Blooded
Not targeted by ground-based AI Scorestreaks. Immune to Thermal Optics.
Unlocked: Level 26

Scavenger
Replenish ammo and equipment from enemies killed by non-explosive weapons.
Unlocked: Level 44
Perk Tier 3

Gung-Ho
Hip-fire your weapon, deploy equipment, and throw grenades while sprinting.
Unlocked: Default

Blast Suppressor
No mini-map signature when thrust jumping. Thruster sound is suppressed.
Unlocked: Unlock Token

Awareness
Enemy movements are easier to hear.
Unlocked: Unlock Token

Tactical Mask
Reduce the effects of Flashbangs, Concussions, and Shock Charges.
Unlocked: Level 14

Engineer
Show enemy equipment and Scorestreaks. Re-Roll and booby trap Care Packages.
Unlocked: Level 32

Dead Silence
Move Silently.
Unlocked: Level 50