Alright, alternate strategy for Oryx:
1. Starts normally; 1 jumper, 3 on the platforms, 2 on the daughters platform (whoever the relic is above is the floater who can be on the daughters platform.
2. 3 on the platforms crouch on the back of their platform and don't need to do anything. 2 on the daughters need to weaken all the ogres (25-50%).
3. When the jumper calls out that he has the relic, everyone gets to the daughter platform that is opposite of Oryx. Watch out for that pesky ship. Start shooting the vessel once the relic holder steals the brand, but everyone switch to Oryx once he opens up.
4. Stagger Oryx, finish killing the vessel, and then 4 designated people (most likely the platform people) each call out when they are ready to kill their ogre. You have 30 seconds from stagger to detonation, so take your time. Once you get 4 "readys" kill them, the 4 jump down and detonate their bombs. Relic holder jumps down to the floor in the middle, and everyone groups up there. Keep shooting Oryx.
5. The rest is the same. Just repeat 3 more times and you have your kill.
Hope that all made sense!
Edit: And here's the video of our clear from my perspective. Apologies for the loud typing in the beginning.
https://www.youtube.com/watch?v=oU8KP3rNwvI