That looks like the pilot that Bungie gave Microsoft to get their game onto the original xbox. I thought the beginning was rather crappy, but once the halo music came on, the game just felt right and it really picked up from there.
That looks like something made with Halo Custom Edition. I dunno, the voice acting was really crappy. But the scene itself was good, if a bit long.
I agree with fish, the voice acting was very crappy, but the scenes in it were actually good. Why are the subtitles in German (im guessing)