This mod imports the new CS:GO (post-2017) weapon sounds for GTA IV. If you want the older, louder, pre-2017 CS:GO weapon audio for IV, you are looking for this mod instead ↓
(https://www.gtainside.com/en/gta4/mods/150321-cs-go-gun-sounds/)

Thanks to dognuts ↓
(https://www.youtube.com/user/TheKillerDonuts),
and catsmackaroo ↓
(https://www.youtube.com/channel/UC_NaJSOvFIUURclk_twYU5Q) for making this mod possible.

If you find any bugs or issues with this mod, please comment them below and I will try my best to fix it. Thank you!