I do not know if it is due to the map or not, but cultural cost of policies might better be increased a bit (Christo Redentor seems to be a bit imba, might better to decrease the cultural policy cost reduction to 25% from 33%), so scientific victory would also be a favourable and competitive option. Rebalancing of policy bonuses was perfect 🙂 I have completed Tradition, Honor, Commerce, Freedom and Order policies so I focused on production, culture and wonders (I had all the wonders except hanging garden, light house). The map is rich in resources and cultural victory seemed to be a bit easy (by mechanized infantry I could get it, with relatively many cities, I had 14 cities included 3 English cities by that time as the Mediterran region has no coal at all, while the English had at least one). Some units could get to level 10 due to the constant fights against arabs, chinese, russians and songhai).
I achieved cultural victory defending the real Roman Epmire’s border (from Madrid to Damascus) for hundreds of years. I played Legendary Earth map (far more realistic and playable map so far in my opinion) with Rome and it was the most amusing game so far. Thanks for the mod I was happy with it, especially with cavalry and archer upgrade.