Technically it matches because they would be the kings second best forces, first being the Imperials who are the elites. The ranking system would be like:
Infantry-basic soldiers, New recruits and small town guards.
Elites- probably change to conscripts, well trained with better equipment, they are the main forces backing the empire.
Royal- The kings elite soldiers, more trained and better equipped, capable of handling most any situations quickly.
Imperial- The kings personal soldiers who are the best of the best and were chosen due to their loyalty to the crown. Well disciplined and can handle the most difficult situations with ease. They are no pushovers.