From Rik: Some explanation about IC in 2.5: Server creation window GUI is obsolete and has limited functionality, use text editor for Saved Games\DCS\Config\serverSettings.lua There are 3 parameters: ["require_pure_textures wrote: ["require_pure_models"] ["require_pure_clients"] Third will check units database (Scripts) and at the same time it's 'master switch' for first two. If you want to apply models check you must set ["require_pure_clients"] = true and ["require_pure_models"] = true If ["require_pure_clients"] = false - no check will be applied and state of ["require_pure_models"] and/or ["require_pure_textures"] doesn't matter."]