Download Fortnite Week 4 Challenges: Launch Fireworks at 3 Locations 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. Fortnite Week 4 Challenges: Launch Fireworks at 3 Locations Wallpaper is part of the Krampus Fortnite collection.