I've been testing this for quite some time. Max hunter agility, throw on mask of the third man... The problem is this: the consensus among my fireteams is usually that it appears to them as if I've made the jump, when on my screen it shows nothing. I've went as far as to try scaling the crystals to get a higher jump point. Nothing. My main point of focus now is the dead portal outside. If you blade dance all the way across you can hit a platform way far away and explore the whole area. Also, there is a floating pillar that I can't seem to find a way to right there over the dead portal. Haven't been able to climb high enough yet.