An offensive operation of this magnitude was exceedingly complex.
Even if the Gemini Family already formed a basic battle plan in advance, the other pioneering groups definitely would not find that to be sufficient enough!
Everyone had different strengths and weaknesses. Even the ace mechs that served as their trump cards all possessed drastically different capabilities depending on their mech archetypes as well as the traits of their ace pilots.
No one wanted their mech forces to be treated as cannon fodder.
At the same time, no one wanted to be squeezed out of easy opportunities to make more contributions.
Due to the profit-sharing agreement that they established, every party wanted to perform well.
The more enemies they defeated through their own efforts, the greater their share of the spoils!
Eventually, the leaders, figureheads and diplomats no longer interfered in the planning of the operation.