It probably was one of the Nine. Not Cu'Roi or Murgen since they join the Legion after it crosses the Cloudspine. Not Alric, because he is gone, as you said. Unless Rabicun was commanding Madrigal's garrisson, it was likely him. I think every other mentioned member of the Nine was busy doing something else... of course the commander could just be some nameless warrior that's never mentioned in the game.
(or a berserk, because the Legion seems to come from the North, which could mean they came from the Stair of Grief or something... hell, I don't know =)
: Who knows who was the leader for the army of light in the
: Great War?(King Alric was the leader and the king
: after Balor's death).
: I remember that in TFL the Avatara Alric was sent in a
: mission in the desert(from the head)but he was
: captured.
: So that leads us that someone else gave orders.Maybe the
: same person who ordered Rabican and Maeldoun to guard
: the cloudspine.
: The problem is that since the emperor was killed,we don't
: know the leader.
: Is it possible that the leadership was under the controll
: of the Nine?And perhaps someone else exept Alric was
: the Commander?(Maybe Cu Roi or Murgen ?)
: Alric gain controll in the end of the war when most of
: the Avataras was killed.During the war he looks like
: taking orders from others.
: Just a thought...
: Din.