Call of Duty: Ghosts for Xbox One has a 49GB install

Victor

The Xbox One version of Call of Duty: Ghosts will also require a 49GB install, similar to the PS4 version. This install is for the entire game, meaning you must install this before playing.

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And other things: Xbox One will also support Ground War playlist, and as it says, all the Kinect features that Ghosts has are optional; you don’t have to connect your Kinect to play.

SOURCE: @trvswilliams14