Activision is supposed to make a full reveal ofCall of Duty: Black Ops 3this weekend. However, their great unveiling has been spoiled by leaks of important details about thegame.The first leak, a pre-order poster from GameStop posted onNeoGAF, says thatCall of Duty: Black Ops 3will be debuting on November6th. That would be a Friday, which is somewhat atypical for North American publishers (they prefer Tuesdays). A Friday release date would make launch marathons a lot easier to pull off, though.Pre-orderingBlack Ops 3will apparently grant you access to a beta. This beta, according to GameStop's poster, will be limited toPS4,Xbox OneandPC. There's no mention of when the test will be held, though.Another set ofBlack Ops 3marketing materialsleaked throughRedditwere even more informative. For starters, they reveal that the main campaign won't be single-player-only. The campaign will support online co-op for up to four players. Like multiplayer characters, the campaign characters can be fully customized with weapons, abilities and outfits.The game will also track your stats throughoutthe missions. To make sure that players dive back into the missions over and over, Treyarchis making the levels more open-ended and"arena-style" so that different strategies can be employed.The competitive multiplayer, meanwhile, will use a "new momentum-based chain-movement system." Players will climb, slide and leap across the map, presumably with theaid offuturistic cybernetics. I guess Treyarch wantsBlack Ops 3's multiplayer to be as agile asAdvanced Warfare's. The maps are being designed to take full use of player's new movement abilities but can also be approached in the traditional manner as well. Maybe they're planning aclassic playlistwith all the agility enhancements turned off?Multiplayer progression is being reworked as well. In addition to ranking up and earning new attachments for their weapons, players will also master each multiplayer character's"battle-hardened capabilities and weapons."WhenCall of Duty: Black Ops 3was first announced, the game's website revealedthere will be a zombies mode. This mode is said to feature an all-new story at launch. There's also a full XP-based progression system so players will become stronger through slaying the undead.The "reveal trailer" forBlack Ops 3is expected on Sunday at 10 am Pacific, or 1 PM Eastern. Presumably this trailer will include a long look at the shooter's gameplay. It may confirm some of the leaked details about the campaignbut we may have to wait until this summer to find out more about the multiplayer.