360 version of Ghosts only supports 2 player local. I hope that the Xbox One version doesn't drop 4 player split screen too.
With all the graphical, audio, and AI upgrades as well as other under the hood upgrades it is understandable for them to drop Ground War on current gen yet it really pisses me off as well because it was always one of the most fun intense modes in the entire game.
upgrades for next gen take up to much power for the consul to do them all with the same amount of people.
expect the same for PS3.
questinable for wiiU(depends on quality of port team poor=same as 360/good equals nothing removed, just worse graphics than next gen)
xbox1, lower res than PS4, but less likly to lag
PS4, better graphics.
PC best graphics, not sure how the new controls will work for this one.