He used the well known technique of hanging from the edge, then dropping feet first. I don’t recall if he dropped the pack and stuff he was carrying first, which is the approved method, so you don’t have to absorb the shock of the extra weight.
Where was the rifle?
Where was the rifle?
The resolution is just not good enough to consistently show the long object. It is probably too thin to consistenly be picked up in the camera pixels in every frame. It shows up consistently as you watch the video as he runs across the roof. It works better to slow the video down.