Today marks the start of the Mountain Dew / Doritos Fuel Up for Battle promotion for Call of Duty: Black Ops 3. The promotion is limited to U.S. and Canada. You can now find specially marked packages of Mountain Dew and Doritos products and enter those code in online to get double XP in Black Ops 3’s new Shadows of Evil zombies mode.

Players can visit Players must have a Mountain Dew account and have to link that account with your Call of Duty Profile account. In addition, Mountain Dew has stated that once you enter a code in, they will provide you with a special video featuring, well, you. Different Mountain Dew/Doritos products offer different amount of 2XP in Zombies. Majority of codes will offer 10 minutes, while buying a 24 pack of Mtn Dew will provide 30 minutes.

If you’re in Europe, Monster Gaming has a similar promotion that will start on October 31st!