Double XP

Double XP explains its self. During double xp, your xp is doubled. Such as 300 points for a domination cap, or 1,000 points for a kill in search and destroy

Subheading
Call of Duty:Black Ops

Double xp was activated for all of the map pack releases. Every double xp, a different system would have [nuketown 24/7]

Subheading
[Modern Warfare 3]

Double xp can be perchased at the [presige shop] for 1 token. Each Double Xp bought can last up for 2 hours. There is also Double Weapon XP where you get double xp for your weapon advancement.