The effects, however, will not stack, so only do so when you're sure to play a long session. You can activate multiple tokens at the same time for increased total duration. Unlike previous titles, CoD MW will not have any limitations on how many 2XP tokens you can activate within a day, offering more freedom for players on how to spend their tokens. It will appear when a token is activated. You can check the remainder of the Token timer at the right-hand side of the screen in the Multiplayer pregame lobby. Any left-over duration will be wasted if you close the game to go sleep, eat, etc. The Token Timer runs even when you exit the game.
Only activate an XP Token that fits your play session time to get the full effect. Unlike previous systems, the Token Timer runs on real time instead of match time, meaning the timer runs even when you're not in a match, such as when editing loadouts or options. it can be earned through challenges and campaign missions. There are Weapon XP Tokens that increases the weapon XP gained instead. Check out All Multiplayer Modes List here! Weapon XP Tokens Exist The boosted XP is awarded immediately and is reflected in the total XP you earned listed in the After Action Report.
When the tokens are active, players receive double the XP for multiplayer in-match accomplishments and achievements.