Almost all the oa games I play are CTF matches. but the voice-over dude really gets on my nerves. Worse, it's redundant with the guitar riffs, which serve the same purpose. Can I leave the guitar riffs and lose the voice?
I'd really appreciate it.
You could, if you connect to a "non pure" server. Create a pk3 (which is actually a zip archive) which contains the replacements for the audio files you want to get rid of (under the same path as they are where you found them, in the pk3s in the baseoa directory), name it "zzz-novoice.pk3" and copy it in ~/.openarena/baseoa. Most servers are pure, though.