significant UU and tech reorganisation on the way.
the biggest change is that Heavy Horsemen are out, Parthia's UU is now a Horse Archer (called the Mounted Bowman for now) with a melee bonus, the Armenian and Bactrian UUs are Horsemen with +1 str and ignore terrain and +50% vs cavalry respectively.
Javelinmen require a new tech, Infantry Tactics, which leads to Military Drill.
Spearmen do not require a metal.
All Axemen and Axemen UUs are +50% vs melee.
most early UUs slightly rebalanced.
new tech, Scale Armor, requires Iron Working (I know there was bronze scale armor, this is balance) and allows Lancers (with Cavalry Tactics) and possibly swordsmen, not sure yet.
new tech, Chainmail, requires Scale Armor and Steel Working and allows Heavy Infantry and Heavy Lancers
Religious Law is now its own tech, requires Theology and Jurisprudence and is required for Theocracy. it allows Militancy as well as Religious Law.
new tech, Bridge Building, goes between Masonry and Engineering.
reasons:
a Horse Archer is better for Parthia since their main enemy are the Seleucid Phalangites which have a bonus vs cavalry. this way we can give the UU 1 bonus (+50% vs melee) and its 9 vs 6 against the Phalangite.
the Heavy Horseman class was awkward. neither the Hetairoi or the Azatavrear needs to be a world-beater. the Hetairoi's bonus (+50% vs cav) fits well since Alex's cavalry were famous for routing opposing cavalry and the Bactrian's early barb pressure is mostly horsemen. the Azatavrear provides a flexible moderate punch to back up the Greek mercs that Armenia will always have to rely on.
the Javelinman representing a flexible formation that excels vs tighter formations (ie melee) seems like it deserves a tech and that leads to...
I want the Spearman to be the basic, cheap, no tech, no resource unit in this mod.
Axemen were nearly useless as is, now they have a strong role, especially with the civs that do not start with Infantry Tactics (most of the early ones except the Greeks, Romans and Chinese).
Theology was enabling 2 civics and a religion, so I though a split was in order.
Bridge Building reminds me of Civ II, and Construction was too early for the bridge building effect and Engineering had too many other things attached to it.
with all these changes I imagine Archers and Marksmen may also need adjusting.
I will probably commit these changes this evening.