I love that encounter. *edit-now with relevant update info (Destiny)

by Xenos , Shores of Time, Friday, January 09, 2015, 08:39 (3638 days ago) @ iconicbanana

After you got two across, how did you get the 3rd person? I understand the bridge stays up for a little bit after you form it, but it sounded like they were going to require someone to stand on the pad to keep it open from here on out? Is that not the case? I only skimmed the update.

***Here's the relevant part of the update:

-Players will now be required to cross the bridge in order to complete the bridge encounter.
-Players will now be required to wait for the bridge to be completed prior to crossing with the sword.

Dunno if this means you'll need someone on the pad the whole time or not. If that was the case, you absolutely need 6 people; it can't physically be done with less if it requires one on the pad and two on the totems the whole time the swordbearer is crossing.

I don't think that means that, I think they're just saying that if you attempt to cross the chasm at all before the bridge completes you'll die, which will prevent people from jumping across the chasm with the sword (one of the ways they soloed the section before). Not positive, but I don't think it'd affect your ability to do it with 5.