How would you build a Roman-style army if you don't have access to heavy swordsmen? I think Pontos do later on, but do many other factions? I'm struggling to think how, short of using Peltastai Makedonikoi any of the Hellenistic factions could do it. I think Qart-Hadast would have to use some elite heavy swordsmen too.
Unless you'd just use them for the rear-most line? Or the second? Then you could use regular Peltastai for your first line and maybe hoplites for the third.
Bookmarks