EngiN33R has written
Okay, it is fake. After you retreated backwards, putting a silencer on your M4A1, you stopped, and then the image shook a bit - that's because you simply merged two videos together: one with the bot running, and one when you were standing there without anyone on the server, and in those two videos you were not standing on one spot, hence the little shake. The aforementioned can be seen at 0:19-0:21. See for yourself.