Activision has kicked off five-day double XP periods for the two most recent Call of Duty games, 2013's Ghosts and 2012's Black Ops II. Beginning today and running through Friday, which is Halloween, players will earn double XP in every match they play in either game.

"This will be the first time you've ever looked forward to a Monday," Black Ops II developer Treyarch wrote on Twitter. Meanwhile, Ghosts developer Infinity Ward asks: "Time to get that last prestige?"

The double XP period for both Ghosts and Black Ops II kicks off today at 10 AM PDT / 1 PM EDT / 5 PM GMT and runs through October 31 at 10 AM PDT / 1 PM EDT / 5 PM GMT.

Looking ahead to next week, Activision will release Call of Duty: Advanced Warfare on November 4--but you can play it on November 3 if you preorder. A "stolen" version of the game recently leaked, which developer Sledgehammer Games is not too happy about.

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