As you work toward unlocking all the free in-game currency, you will also earn new Weapon Blueprints, cosmetics, Double XP Tokens, and more. Here's a breakdown of the free COD points in the MW3 ...

Double XP tokens and similar boosters also count ... It can be purchased for 2,400 CoD Points in the MW3 store. Since this event tracks XP and not specific challenges, all players can participate.