On the off chance anyone was (still) interested in the Empires Aflame setting, the Terran Supremacy is noted as making use of the Celestial OmniMech designs (with "regular" human pilots) in that alternate timeline.
Plus, certain Word of Blake Militia units, such as the Toyama, appear in the TSDF also (for whom that 'Mech is known instead as the Odysseus),
So, if anyone wanted to take a side-step (or Misjump) to the other side of the mirror, they'd be able to paint up a Celestial box set and a would-be WoBM set in... whatever colour scheme would suit the Terran Supremacy Defense Forces.