This has always happened to me. The first time I found the CZ57 Avenger, I though awesome. Used it for a while normal sounds game out, but then the bug happened where the noise continuously plays over and over until I put it away. Several other play throughs I got the same gun and generic Miniguns which all do the same thing which make that continuous noise. Even when a super mutant uses one the same noise goes over and over again.
Are they going to fix this with the next patch as I enjoy the CZ57 as it is a great weapon, but I cannot stand the noise,