As part of their collaboration with Doritos, Call of Duty are offering Vanguard and Warzone players a free Calling Card inspired by the triangular chip, and here’s how to claim it. Doritos and Mountain Dew have long been associated with Call of Duty and MLG, with PepsiCo giving players free cosmetics and Double XP every year. How To Redeem Little Caesars Rewards For MW2. To get the Little Caesars Rewards and Cosmetics, you just need a valid receipt showing you purchased the meal. Once you’ve done that, please follow BwxI.