Always read a mod’s “install location” and mentally prepend \mods\ to the path. For example: original path update.rpf\... becomes mods\update.rpf\...

Create a folder named mods (lowercase) in your main game directory.

This is the hallmark of an advanced user. Instead of editing the original update.rpf or x64.rpf archives, you create a virtual mirror.

This ensures the OpenIV driver (required for editing archived game files) loads correctly. Most setup failures happen because users skip the reboot.