Per "Endgame" p. 261 (of my PDF), Gavin Dow "had blocked any return by Victor and the few survivors of the 244th Division at first. He only yielded after Victor took a public oath to ComStar that he would never again-under threat of immediate censure-put any personal interest in the affairs of a Successor State ahead of ComStar's business."
My reading of that is that the 244th A) wasn't exiled from ComStar, but instead rejoined the organization and B) was reduced to just a handful of survivors. Since there's no mention of the unit in the Jihad or afterwards, those few survivors were probably folded into other commands and the 244th was stricken from the rolls.
