I don't know if it is only me but some other guns don't have a sound when firing in pc anymore. I'm a pc player in era cause i;m used to it, i've been playing in pc ever since i started and i know that some guns really doesn't make a sound when firing in PC version. But now, guns like BAR and default rifle doesn't make a sound anymore unlike before. I hope this can be fixed if it wasn't only me that is affected.