Fantastic looking table!

A couple of questions, I am rebasing all my mini's be it fantasy or historical slowly from rounds (skirmish) to ranked square bases. It looks cooler and I want to make each unit a little diorama and this ruleset seems perfect for it.
I have chosen the base system from the upcoming Claymore Castings HYW ruleset. 60x50mm for infantry, 60x80mm for cavarly and 40 to 50mm rounds for command.
I am going for 3 bases wide per unit so 18 cm.
The historical army working on is Spanish 11th century. I guess that i.e If I place it under the Command of El Cid. I can have El Cid as the general and Alvar Fanez en Pedro Vermudez as sub-commanders? Pedro would be the army battle standard bearer. Is this possible with the Midgard ruleset?