To install open up the RAR file and from it drag and drop the folder into your C:\Users\USER\Saved Games\DCS.openbeta\Liveries\Mi-24P or into your DISC:\Program Files\Eagle Dynamics\DCS World OpenBeta\CoreMods\aircraft\Mi-24P\Liveries\Mi-24P folder and enjoy. I hope you like the livery, feel free to rate it and comment, and as always have a safe and pleasant flight!
*UPDATE: Fixed the wheel color