Hi Rick !
Well I already extracted some gun shots etc.. from the rez file, but I didnt try to inject another .wav sonds back in..
bcs I start another mods about skins of weapons and many things...
But if I got time ..I try it later...
Its possible..but it takes time..
Here some info about..
https://www.mpgh.net/forum/194-crossf...z-modding.html
Also I think..if you must to replace another guns shots as the same original size...bcs the rez file got checked by Xtrap file checker...so is more difficult-.-
And only you can hear them not others players...