A user by the username of "Revival1518" claims to have some leaked gameplay of Call of Duty Ghosts via a series of screenshots and a video still of some of those screens... Take this with a grain of salt, but a multiplayer reveal is possible at E32013. Usually reserved for August/September.
View: http://www.youtube.com/watch?v=Ocmkdrukjsc
Check out the screenshots here at PixelEnemy. Original leak was at NeoGAF, so again, grain of salt.
Check out the screenshots here at PixelEnemy. Original leak was at NeoGAF, so again, grain of salt.