So today there was a group of people on their Coeurl in Mor Dohna, so i decided to join in with no plan or anything.
Shortly after we swapped to our Fat Chocobo's and that's when the party started, out of nowhere people joined on their Fat Chocobo's and jumping all over the place, and in no time at all we have people on the opposing side on their Behemoth's.
We all ended up lining up and blocking the entire path with Behemoth's and Fat Chocobo mounts, even had a good number of people on their Magitek Armor and Gilded Magitek Armor mounts blasting away at the group from above.
Eventually i had to go into a dungeon but i was told there ended up being around 50 people on the Magitek Armor mounts.

Was a golden day for me and everyone involved