Well having read the Field Report I now know what Beta galaxy was up to, they lead the assault on Pesht, and other worlds before moving down to Dieron.
And Also:
NNNNOOOOOOO!!!! Not my 304th Assault Cluster! But at least we went down swinging in the Chiloe Pass, probably led the breakthrough. Guess I will have to shift to my second favorite unit, the 3rd Bear Guards (The Illkhan's Shield).