Every sane person (me and you ancluded, a63nt 5m1th) would look for minigun sounds in a folder called... well, "minigun".
Unfortunately, R* does not seem to employ any of said "sane" persons, at least in the sound department.

SPL_MINIGUN_LP.L
SPL_MINIGUN_LP_OFF.L
and the one named _SPIN are just that; the beginning, spinning and spin-down sounds.
The actual "BRRRP" I'm looking for ain't in there

By the way, I had the sounds converted to mono already. I'm utilizing Audacity and Wavosaur for all edits

In the meantime, I copied my backup-resident.rpf (but left the weapons_player.rpf) - the minigun was indeed affected
by the resident.rpf, since the sound reverted to the vanilla one.
Started picking apart the resident.rpf gunshot sfx again, I changed other variations of MGN_AK47_PLYR individually -just, they don't turn up anywhere outside OpenIV either

Greetings,

I recently found a a real nice sound which I'd like to use for the minigun.
Can't get it to work though, biting my teeth out at this one.

I'd REALLY appreciate if someone could tell me where I went wrong!
Here's where I'm at;

User MvcGyver was kind enough to point me in the right direction, I found the sounds he mentioned -
MGN_AK47_PLYR_VERC_LAV_0X.L (X being 1-4) in resident.rpf.
So I extracted this to .oac

I cut the sounds I wanted out of the video,
converted them to the same bitrate and kept them at a size smaller than the original sounds,
reinserted them via .oac - and when I check in OpenIV, I can hear my modded sounds,
yet they turn up nowhere in-game.

I'd appreciate the help, basically I have no idea what I'm doing anyway so might as well offer to donate to someone willing to make it for me, I'm that desperate

Anyone up for it, name your prize ans see what you can make of this ^^