Looks good...but I think it should be two commanders.
Speaking of commanders, here's what I have for the Tri-Alliance.

Space Commander Laura Winslet. After much debate, the Tri-alliance agreed to put her in charge of the whole operation. She will not be actively participating in the event. (Meaning she will be directing the battle.)
Roman Commanders
Regular Legion: Legate Thracius Ovid
A longtime veteran with a great military career. Will be leading the regular infantry.

Terror Legion: Legate Gerald Vibius
A cold and merciless leader with a dark past. Even
Remus is scared of this guy. Will be leading the special forces.

Provocatores: Legate 004. Of the first six prototypes, 004 was the only Provocatore that passed all of the initial testing and survived. Will be leading the superhuman Provocatores into battle for the first time.
Anghoran Commanders
Chiva's Warriors: Warchief Tyenda Drezel. Veteran of the Lenaar War. Expert when it comes to ambushes and hit and run. By the time you see her warriors, your defenses will already be compromised.
Atolian Commanders
Grand Fleet Marines: Admiral Daca min Frey rey Ermi. An experienced and courageous leader. Unable to assist at the Battle of Atole due to more pressing operations elsewhere, Admiral Daca has been itching to dish out some pain on the Dragonheart forces.