It's great that you do, and I hope to see a lot more from you! But Im afraid this one is contrary to the existing lore. You have painted Osiron as a slave force to the Academy, but in fact they have a mutual agreement. Yes, the Osiron goes where the Academicians go, but they are more like permanently hired bodyguards. No, actually it is more akin to marriage (of the organisations of course, not of individual members). A very long term contract.
So if Academicians tell Osiron men to, say, guard an installation, then they will, because it is part of their eternal agreement. But if an Academician tried to mistreat them, they would lash back as a monolith. It's an ancient order of macho warriors after all, with decent understanding of honour and duty. The Academicians may have Espers, but Osiron has guns, lots of them. And both sides understand their relationship very well.