Problem solved!
Sorry guys, that I didn’t reply for long. (almost forgot) My friend screwed up his BMS, due to a few configuration (fail)changes via the LOD-Editor. :roll:
He told me, he wasn’t able to load correctly into a “quick Dogfight” session in single player. (invisible cockpit)
Anyway, I just want to let you guys know. Thanks for the help though! 🙇