Blake should NOT be military; he should be a dissident, yes, but not military. He should be an academic, a bureaucrat-- a privileged uninvolved man, so his involvement with the rebels will be more of dramatic step. When he witnesses the massacre, it makes him a true believer.
Yeah, they could easily get rid of Gan's limiter; that was useless right from the start.
I merely mentioned it as this will be an American show and the number of times hero just happens to have a military background...
Just as a justification for his moving against the Federation if they DON'T mention he was a dissident beforehand. I can't see someone privileged leading a rebellion. Following maybe but not leading.