Thanks, though it is not that I'm getting crackling or something like that (which the only post I have found about sound problems seems to be concerned with). It's a regular, ordinary alarm tone. But well - I guess I could start messing with those buffers. Trying doesn't hurt.
Flags for Capture the Flag only? For if it's - as it was in BF1 - supposed to list my control point captures (see above), it clearly doesn't do that. Nor does it list captures for ANYONE else. Anyway - thanks for your attempts to help me