REGULAR INSTALATION

To INSTALL this mod, drag the content inside the "Mod" folder and drop in the main directory of the game. It's gonna ask to overwrite a file, hit okay.
To UNINSTALL, go inside the "Backup" folder, and drag it's content inside the main game directory. Hit "okay" to overwrite.

INSTALATION WITH INVALIDATED FILES

First, make sure you have the INVALIDATED FILES on your game folder. You can find them here: https://www.nexusmods.com/devilmaycry4vanilla/mods/5
To INSTALL this mod, you can just drag the content inside the "Mod" folder and drop in the main directory of the game. It's gonna ask to overwrite some files, hit okay.
However, to UNINSTALL this mod and put Rebellion back, you gotta go inside nativePC\model\game and delete the folder wp005.
After that, you can go inside the "Backup" folder, and drag it's content inside the main game folder.