All you have to do is get three people with a 4th Horseman and turn him into burger meat. Our group only had two, but the result was pretty similar...

Of course, that's assuming that he doesn't go Full Crota and screw things up for everyone. And here's the twist: He does! HE DOES. ALWAYS. HE ALWAYS DO.

See the Encounter timer at the end? See it? If it wasn't one thing, it was another. He'd go a different route. His stomp would kill people on platforms above him. His Scorch rounds would decide to punch through cover randomly and va-poorize us. He would teleport between us. He would decide to pump more dakka into anyone who wasn't Immune, and send his minions teleporting over to you. He'd set the middle Mine just as his troops were pouring out of their closets...

It was rough... Way harder than even Qodron was with a pair of 33s.
What I thought was neat, though, is that hours into the encounter, not once did Otter or Guardian suggest giving up, even with Guardian getting swarmed by minions of his own IRL.

And the best part is that I didn't have a treasure key, so no rewards for me, lol.