When i connect with my dedicated server created on my own computer using arma3server.exe in a game folder i have no sound in a Zeus mode, only "clap" in the beginning.
My Zeus character appears in a white fog and i can't see anything except it. No world, no ground, no sea, no building - only white fog.
Resolving a bug with a white fog achieved by re-entering on server in the same (Zeus) slot once or twice... But the sound bug continues existing - i have no sound as before.
Resolving a bug with in-game sound achieved by pressing ALT+TAB three times.
So, in conclusion the "sound bug" and white fog bug are not critical but they cause inconvenience. My friend with same operation system like me has both bugs too.