I found the tape out in the map twice now and i'm at lvl 50. First time I died end of story with no OWFL recording. Second time, I was downed once and got recusitated, still it didn't keep. So you have to have a perfect game. IMHO its very difficult to obtain but not impossible. If you have friends, insist on a private match and just explore and nothing else. Like the other post suggested, try to use stealth on AI too and see if there are more xp points or opportunities for remaining in stealth.
IMHO the tapes are interersting. Without spoilers, I don't think it produces anything cool, just a strange story. I don't think it make an interested sequel or game but who knows. Unless we see concept art then it is what it is.