Quote Originally Posted by Labrat View Post
It'll be hard to find the thread again, but there is an old post explaining why thureophoroi are depicted as heavy infantry. IIRC it was because at least one chronicler mentioned thureophoroi being singled out with "other heavy infantry". Off course, it should be kept in mind that "unit types" are not as well-defined in history as in EB: thureophoroi may have meant different things depending on time and place. The team has also decided to go with the "heaviest" possible interpretation of each unit.
I'd be curious to hear which source groups thureophoroi with heavy infantry, because one of the only sources that I know in which a specific categorical mention of thureophoroi is made is Polybius' account of the crossing of the Elburz range, in which he classes both thureophoroi and thorakitai in with the light infantrymen.