Helicopter cutscene

There is a cutscene near the end of 72 hour mode, about one half hour game time before the helicopter arrives. The scene triggers, showing Ed, the helicopter pilot, flying over Willamette, headed for the mall. He's stating that Frank is probably dead but that a promise is a promise. The whole scene lasts for maybe 15-20 seconds.

I know that this scene exists, as I have recorded it on tape. It is also in the script for the game created by berserker on GameFAQs.com. The problem is, it has only appeared that one time and thank goodness I was recording. I cannot for the life of me figure out how to make it appear again. I have tried getting to that point in the game with all actions needed to get the A ranking, I've tried being in the security room at the time it appears, I've tried being outside the security room at the time it appears. Aside from going for a lower ranking ending, I've tried everything I can to make this cutscene trigger and it's not happening.

Has ANYBODY else seen the cutscene I'm referring to and/or know how to activate it during gameplay? I can't even find any copies of it on youtube or anything and nobody seems to know. Anyone here have any ideas?