The UK’s Royal Air Force has been preparing troops for some missions with immersive XR simulations in Cesium for Unreal. Data from several sources comes together in VADE via Cesium for Unreal: Cesium World Terrain; Maxar Precision3D 3D Surface Model; imagery from Sentinel-2, Bing Maps Aerial, and the UK Ministry of Defence; Reveal Farsight models; photogrammetry from VRAI; and data from OpenStreetMap are hosted on Cesium ion On-Premises and tiled into 3D Tiles for streaming into Unreal Engine.