Yeah, I talked to several Flames of Hell fanatics about this(Peter, Heldriver, etc) and no one has a clue what exactly this is. I believe also(agreeing with peter) that this is Kristinn's work, as on the youtube account of the original uploader of the films, it says that this is "Draconian Centrum," and I know that Draconian was Kristinn's publishing company and FOH record label. If not Kristinn mabye then this is John Grade's work. Who knows?
On the film itself, maybe it is one of those experimental films?
Also I am SacrilegioBM on youtube and I commented on the original FOH profile- nini666nini
Apparently the guy who posted below me has more insight, maybe I will message him.