Aside from Max Payne 3 having some sort of a multiplayer event this weekend, Treyarch and Activision is having one as well for Black Ops 2!
Happening right now on all platforms, players who will participate in this multiplayer event this weekend will be getting a double XP. You have all weekend to rack up those experience points but don’t forget that the event will end on Monday, December 17th at 10AM.