Hey tietze (JET),
I just looked trough your TACview a bit and another strange thing happens, before some units starts turning invisible...
If you look at 04:41:55 you apparently get destroyed.
But I clearly remember you still flying around at this point, but your Ka-50 is missing it's entire tail though. :doh:
Anyhow if you have a look at the array of events happening at 04:56:19 (T-55 being hit by cannon fire), those shots are coming from your Ka-50, but your Ka-50 is invisible in TACview and where also destroyed according to TACview (and probably also the server?).
Maybe this leads to some server f*ck up, for the lag of better words!?
Anyways food for thought.
/Krycek
PS. Let's test to see if the latest update have fixed the issue with the invisible units soon mate.