I've noticed that when you have a full fireteam right before Crota you can hear reversed audio around the side rooms. I don't have the tech to decode these mysterious whispers but I bet they have some secrets within them. Please can someone decode the reversed audio and post a video of it. Thanks
Edit 1: Bump?
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https://www.youtube.com/watch?v=dQw4w9WgXcQ i got it decoded