Happy to hear vae's near only win on me is circulating as he hoped Wouldn't it be easier to replace the sounds in a different pak that overrides stock?
I've attached a pack (well, *.pkz so really a zip file) containing chaingun sounds I think are pretty good.chngnd1a.wavchngnl1a.wavchngnu1a.wavmachgf1b.wavmachgf2b.wavmachgf3b.wavmachgf4b.wavmachgf5b.wavFound them as part of some larger pak 15+ years ago, and I've changed out a lot since then but always kept these.That said, they don't really "slow down" the chain, more like double the speed but make it smoother.