Actually, In Autobootcamp, Sentinel was still Sentinal Minor, not Major.borg72 wrote:minor, major, prime, magnus are the known ranks in ascending order.
in autobo(o)t camp, for example, sentinal was sentinal major.
i think its a nice twist on the whole naming convention (though technically it means that ultra magnus's actual name is just 'Ultra', as bee points out when he arrives on earth in season 2)