Black Ops 2 Double Weapon XP weekend from July 3rd till July 8th
Treyarch has announced that Black Ops 2 Double Weapon XP weekend will start tomorrow, Wednesday July 3rd at 6pm PDT, and ends Monday July 8th at 10am PDT.
This holiday weekend, expect 2xWeaponXP, running from Wednesday, July 3 (6pm/PDT) through Monday, July 8 (10am/PDT) on all platforms.
— Treyarch Studios (@Treyarch) July 2, 2013
SOURCE: Treyarch