Download XCOM: Enemy Unknown first DLC pack adds missions, maps, new squad Wallpaper from the all Widescreen (4K 5K 8K Ultra HD resolutions) for mobiles, tablets and desktops devices with Microsoft Windows / Apple iOS & MacOS / Android / Linux and other devices. XCOM: Enemy Unknown first DLC pack adds missions, maps, new squad Wallpaper is part of the X-COM: UFO Defense collection.