I got bored and replaced half of the SWAT audio dialogue with USEC voice lines from Escape From Tarkov.

I'll get a demonstration video up soon.

So this isn't finished, most common voice lines are replaced by the USEC voice lines. I'll update this again once I have free time.

Instructions:

1) Extract all the files into your desktop.

2) Open OpenIV and go to x64/audio/sfx/S-FULL-SER.rpf

3) Drag files into S-FULL-SER.rpf.

4) Start GTA V and enjoy!

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Credits:

Battlestate Games for making these audio clips.

Hudson445 for ripping out audio clips from EFT files.