User blog comment:Hawki/Nova Covert Ops, part 3 - Reflections/@comment-4817-20161130120308/@comment-58609-20161130235444

Per some of the above points:

-Stone's age is problematic, but not insurmountable. If he is John, and became a Ghost at the age of 13...I could see that happening. Kerrigan began training at the age of 8, would have been 16 when she killed the Mengsk family, and even younger on the Umojan mission. Colin would be of similar age and while not in combat, was in training as well. So, if he does become a Ghost at 13, that's young, but younger child soldiers exist. And by NCO, if he's, say, sixteen...that could work.

-Concerning glassing, Tassadar didn't glass Tarsonis since he made efforts to save the terrans on the world rather than using orbital bombardmant. That said, I don't know if that would be possible regardless, given the amount of zerg, and that you still have some Confederate forces fighting back against both sides. By the time of the zerg campaign, the protoss have been severely mauled, so it might not even be possible.

So, with the Tal'darim, we've seen them use glassing to some extent at Tyrador, but maybe Vardona is better defended?