So as it stands with the MiG-21bis in DCS, we have non-editable (without breaking integrity check) RSBN and ARK beacons on the following maps through the use of an R_NAV_data.lua. Caucasus Nevada Normandy (why?) PersianGulf Syria TheChannel (again why?) We are missing an R_NAV_data.lua for the following maps: Kola Sinai I have attempted to create such a .lua from scratch for the Sinai map, but was ultimately unsuccessful. I