This begins on Fortress Maximus, Great War Veteran in head mode. This beings with a character on him in head mode. This can’t flip.
When Fortress Maximus is KO’d -> Deploy this to the battlefield in body mode, even if Fortress Maximus was your last character.
When this battles and you flip at least [W][O][L][B] -> You may play an Upgrade from your scrap pile onto this.