Things you need
1. A Code (Get this from Monster Cans that have a lid, A 4 pack of Monster cans, or a 10 pack)
2. Your account Linked to Call of Duty
1. Enter your code (I believe you need to restart the app to get the 2xp to work)
2. Load Into the game and...
- A challenge that hasnt been completed (NOT A CAMO CHALLENGE)
simply complete the challenge in game
quit out of the app after you see it completed on your screen *MAKE SURE THE GAME DOES NOT END...