One Of Swords notes this weekend offers the chance to get double experience points in Call of Duty: Black Ops II. Dan points to this tweet that states: "Vengeance is a dish best served with Double XP, so look for it this Friday, June 28 (10am/PDT), running through Monday, July 1 (10am/PDT)," adding that this indeed is for all of the military shooter sequel's platforms.