[fivefifty]

I'm fairly sure the Ghost of Kyiv came from a DCS (digital combat simulator) player originally and is actually based on this short DCS movie called 'The Ghost' which has very similar core details. https://www.youtube.com/watch?v=pM8tXUz2q0c

Also some of the original footage uploaded that was purported to be of the Ghost of Kyiv was from DCS and I believe was even admitted as such by the uploader but like most rumours it has since taken a life of it's own and the exploits become increasingly more exaggerated over time.