So one thing I am slightly confused is at unit creation the Class Options. Are these selected when you create the unit's class, or when you are building your army at the table?
(IE do you consider them when your building your faction, or before the battle starts?)
Also, are they considered when you create another class off of them
(IE the Chain of Command option for humanoids. Does a elite class based on a standard class keep the discipline upgrade?)
Class Options are taken when creating the class.
Class Options can be carried over to your new class if building the new class from an existing one.