Huh, neat reads. Thanks for the info.   Speaking of historically attested military words that may or may not have been used to describe actual formations/army structure, I've seen the words "light hoplites" (Ekdromoi, ékdromos [nominative], ekdrómōi [dative] https://en.wiktionary.org/wiki/ἔκδρομος), referring to loose formation of hoplites wearing lighter gear/not wearing much armour (mostly reduced to their shield and a helmet) https://en.wikipedia.org/wiki/Ekdromoi, though from what I've managed to find so far in terms of references isn't too detailed.

For that, it may be fine, because it is very unlikely that it would use copyrighted stuff, but still, I think we should be careful  But I don't think it can be under creative commons if we use ai

Alemanni and Marcomanni were Suebi, although i suppose you could theoretically split them (no idea how much material there is). Are Vandals viable in this timeframe, or can they just be included in Lugii? Cherusci i assume are earlier Rhine Germans (or North Sea, or even their own thing with how not all sources seem to agree on what they were) and Franks are slightly later Rhine Germans.  

@ThePoshBarbarian, thanks for taking part in the discussion. I'm going to try to answer your main observations, with relevant quotes and their sources hidden:   "Psīlós" is a term too general to use for any unit in particular, and applies to all city-states. They were indeed light troops, but basically means skirmisher (and more), those throwing rocks with their hands would even be included. They have then to be ignored, because are usually already considered (javelineers, etc). Euzonoi seems to be a similar generic term, I can't find anything in army oriented sources, besides the term itself in that lexicon.   I'd remove Athenian slingers (while maybe having Rhodian ones as mercenaries), from the sources archers and javelineers seem to have been more associated with Athens. Maybe it'd require more reading and decision making, but I'd give non-mercenary slingers to the more northern pastoral Macedonians and Thebans (when they are added).   Sometimes it's difficult to identify if peltasts are mercenaries or not, usually they are. Sparta and Athens hired them, and even if one reads "Athenian peltast", other information reveals that they are probably mercenaries (like those under Iphicrates). Still, many state that Athens did organise native peltasts. Macedonians also seem to have non-mercenary peltasts, with Agrianian javelinmen considered allies. This is portrayed in the game, although not sure if their elite status is (not being champions).  

Cherusci, Franks, Alemanni, Goths, Marcomanni. They all appeared before 300 AD.