In the video game Call of Duty: Modern Warfare 3, perks are special abilities that can be equipped to enhance a player’s performance in multiplayer matches. There are a total of 15 perks in the game, each of which falls into one of three categories: Tier 1, Tier 2, and Tier 3. Players can equip up to three perks at a time, one from each tier.
To equip perks, players must first select the “Create a Class” option from the game’s main menu. From there, they can select the “Perks” tab and choose the perks they want to equip. Perks can be unlocked by completing challenges or by leveling up.