Make sure to first have SuperBLT, and CustomOST installed. Click the links in the dependency list.
Optional video tutorial for installing SuperBLT, BeardLib, and mod_overrides mods: https://youtu.be/rin_sjSJIkg
mods\CustomOSTTracks
Instalacion Mueve la carpeta a CustomOSTTracks (Del mod CustomOST) PAYDAY 2\mods\CustomOSTTracks
Installation Move the mod folder to CustomOSTTracks (Of the mod CustomOST) PAYDAY 2\mods\CustomOSTTracks