All military shooters will take place in a parallel universe where the world's governments realize that while war is a means to an end, the cost of life is too great to be a viable option. All firearms were discarded, used only for sport now, and instead all guns are paintball guns. The UN sends judges to determine when soldiers have taken enough hits to be considered unfit to continue. In the end, the soldiers meet in the middle of the battlefield, shake hands, and pull out wet sponges to clean paint off the opposing teams's uniform and kit. In this world, in war, no matter which side is victorious, everyone is a winner.