The mk90sounds_v2.rar file you have requested: Shadow of Chernobyl / Mods / Sound and Music / S.T.A.L.K.E.R. soundpack by MK90 - 302.76kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R. Shadow of Chernobyl and upload any files you want to share or are missing. This is the only information we could locate:
this is a soundpack for S.T.A.L.K.E.R. that replaces the firing sounds for most 5.56 weapons and the AK74.