It is fake. Hell is no on earth. Or in earth.
In my opinion, "Heaven" and "Hell" are just states that one dies in. Meaning, that if someone dies and people left alive remember the dead person as good, then that person dies in the state of "Heaven," and vice versa.
But that does not stop a place from being deemed as "Hell" or "Heaven." Therefore, the term "go to hell" can be used against someone meaning that you want that person to suffer in some horrible way, and "this is paradise/heaven" can be used to describe some wonderful place where one is always happy and active.
That video is not of the screams of the damned. Unless those "people" were claustrophobic in real life, the recording was just of some wired sounding gas release or from some game. The Christian Bible describe "Hell" as some unimaginable horror that one puts himself in for all of eternity. Once you are "in Hell" or "in Heaven," you are stuck there.