Activision has announced a Call of Duty: Black Ops 2 double XP launch weekend.Taking place from November 16-18, the double XP weekend will be exclusive to those who download the Nuketown 2025 bonus map included with Black Ops 2 pre-orders.Earlier today Activision released the first image of the Nuketown 2025 multiplayer map, plus the first screen showing the mystery box from the game's Zombies mode and a fresh shot of the undead.The list of Black ops 2 Achievements was recently revealed. There are some potential spoilers in there, so avoid them if you want to stay clean ahead of the Black Ops 2 release date of November 13.