That is very neat not going to lie. What I find weird about this video is that the guy is in a pretty shady looking stairwell and I hope that is in his basement or something because it looks like plenty of crimes are committed near that stair well, just look at the corner it looks like plenty of homeless people have went into that corner and have done unspeakable things. When I watch the video again I feel like there was some editing involved to make his voice like that, I do believe that if you go at the right pitch and sound it should sound exactly like the Halo 3 theme but I thought the echo could not be that legitimate.