Correct, except helots in vanilla have same stats as pretty much all other javelineer units which doesn't make as much sense to me and dont bother with @Arup He talks a lot, but wont ever try anything

Yes, for sure you would already have Perioeci hoplites, so it's ok if you leave the javelineers just as helots (like in vanilla!).

Based off of one of the articles you sent, it sounds like most Perioeci were still equip as hoplites. That's why we gave helots both jav and slinger options.  We have cretan archers but not until p3 i dont think.  And theracian peltasts available p2.

I suggest you open a ticket for all these name changes in the gitea @Vantha or @wowgetoffyourcellphone might help bring these changes to life