This is a post mostly directed at someone from the community team to possibly refer to the dev team, but I'm also looking for ideas from other players.
A group from my linkshell just defeated Arch-Omega today and received a couple of his parts (foreleg and tail). The person who got the tail was after the Enif Gambieras, went over to Wilhelm in Mhaura and traded him his old dusted-off Homam Gambieras along with the Arch-Omega Tail, and, as expected, was rewarded with a shiny new pair of Enif Gambieras. Straightforward enough, as the Enif set is a pretty obvious direct upgrade of the Homam set (likewise for Nashira/Adhara).
Then, the person who got the foreleg from Arch-Omega went over to Wilhelm, interested in getting himself a pair of Murzim Manopolas - the new set with a few different jobs and different stats. He traded the Arch-Omega Foreleg alone to Wilhelm and received an extremely cryptic message indicating that it would have to be traded with another item acquired from Limbus. The message was something to the effect of... trade that to me with "other curious materials" that come from Limbus to be rewarded. I'm all for puzzles, but I'm not for puzzles when they involve sacrificing rare/ex items that can only be obtained once every few days at most. For example, one thought we had was that we would have to trade Omega's Foreleg along with Arch Omega's Foreleg to receive the Murzim. This could possibly work, but if it doesn't, we wouldn't be surprised if Wilhelm takes Omega's Foreleg, works his magic, and spits out a pair of Homam Manopolas (along with returning the Arch-Omega's Foreleg), wasting at least 3 days in the process, assuming we can split up enough to farm all the chips and kill Omega in the same day (AND be lucky enough to get the Foreleg).
If someone from the community or dev team can respond, can you either clarify this or possibly give some guidance as to whether we are thinking in the right direction?
Other players - any idea? We tried other random Limbus drops like ancient beastcoins and AF+1 materials to no avail. Really the only theory we have at this point is old Omega part + new Omega part.
tl;dr - How do we get Murzim from Arch-Omega parts?