Youtube Videos and IL2 Again

[Nitro]

I have many IL2 videos online with many different actions etc..

But today I was surprised when I saw one of my videos called "Basic Flight Maneuvers" was removed from Youtube.

That video contained only IL2 content flied only by me, demonstration of basic maneuvers and nothing else.. I spent a lot of time to make that video looks nice..

And question is.. is it illegal to upload IL2 videos without permission of game makers... or there happened something mysterious