I don't know if this info is even available. But I would be extremely curious to see if trans soldiers were concentrated in any particular positions or areas of the military.

I imagine the military readiness of the average trans soldier was probably far above average. It's not like the military or military culture was ever some utopia for trans people. I'm sure every trans soldier or sailor had to deal with a whole lot of shit related to their gender. To be willing to put up with that, they would have to really like and be passionate about their job. To rise in the ranks in the face of bigotry, they would have to be quite skilled at their job. Marginalized minority groups usually need to work twice as hard to produce the same career outcomes as their non-marginalized peers.