Joshua recognisong the risks of a quick promotion is smart. How forseeable that new god and ace pilots may one day succeed over the alien threat, only to turn their weapons on the people they are meant to protect.
Atleast the Clan can count on Ves' living mechs to keep their Experts from going astray! Like that time Joshua was tempted by the power of a Plasma Sword, and Everchanger talked him down.
