Gentlemen:
This is my first time playing since the Rev66* days where the AI beelining Mathematics was a major issue and pre-Vokayra. I am in the Renaissance on Epic using SmartMap (everyone is pretty equal terrain-wise, having decent terrain as a result of SmartMap) with 12 civs and 3 large lands.
First, Vokayra's tech changes and religion restructuring are definitely more balanced. I love the extra turns necessary to reach Feudalism and start the Medieval Age. I am also impressed by how the religions distributed. The Ethiopians founded Naghualism and Christianity, but other than that, the whole issue of getting to Buddhism was not a big deal and the religions were decently spread out. I founded Buddhism (my personal real-life preference) without having to be cognizant of "waiting" for Judaism. That said, all of the early religions were founded quickly. I note that as an observation, not a criticism. It seems more appropriate that the early religions are founded early.
Second, I can't thank 45 Degrees enough for his efforts in revamping the game engine. Wow, what a HUGE difference (especially for relatively less efficient computers--mine is a 2.2 Ghz single CPU with 256 MB ATI PCI separate graphics card and 4 GB of RAM running XP). The reduction of AI turn time is a big help, and the graphics paging definitely avoids CTDs. Notably, however, the graphics paging slows down game functioning as you go around the map. I'm sure the issue is more a result of my low-memory graphics card than anything else though.
Now for issues: I have attached my savegame from the beginning of my hours-long war with Ethiopia. Holy $*&*! Schneikes do we have some crazy promotions going on. IPEX brought up the same issue last month, but it wasn't responded to in this thread. One fully-promoted Swordsman and one fully-promoted Pikeman appeared out of nowhere. These units didn't fight anyone and weren't leaders. There's no way they could have gained these promotions. Practically, I was able to lure the Swordsman off his square to attack a stray Maceman, which knocked down his HPs sufficiently that my army could destroy him (because a fully-promoted unit doesn't have nearly as many bonuses to attack as defense). And maybe, he didn't succeed on his 8-10 first strike chances.

Either way, advantage: Human Player.
As for the Pikeman? He's nasty, and cannot be defeated on a hill city. He slaughters my trebuchets. I am amassing bombard cannons and Elephant Bombardiers--which by the way made my day, what a cool idea--but I feel like it's going to take a Tank to get rid of this dude.

What is going on here?
My other issue is more general with regard to combat. I don't know if this is intentional, but for some reason, my units get slaughtered in defense of the AI units. As long as the AI units have one promotion (looks like a placeholder promotion for Ethiopia?), they have 2-7 first strikes and +like 45% on strength. What is up with that?? I repeat, they don't have any other promotions except this odd icon, which the 'Pedia says is a placeholder. Yet, they mow down equal units with superior promotions. I have attached a savegame as proof (yes, I understand in this particular situation my army is not on a square with defensive bonuses, but I had been on hills squares and was still getting beat down). Of course, if the AI units happen to have legitimate promotions, forget it. You're not going to defend against them, and you're not going to beat them.
(Another issue to note: Why are the combat odds so low when two equal units go at it?? Might be related to this issue. Also, if I use a Crossbowman to attack a Swordsman or other melee unit (which the Crossbowman is supposed to defeat), my odds are very low to win, regardless of the terrain. What's up with that?)
Also, along the lines of the above, when the AI attacks, my trebuchets are sometimes first to defend (even though other proper units have full strength). Something strange is going on with the choice of the defending unit in a tile for the human player (not for AI). This is of course entirely unfair, as the AI snipes my trebuchets, like my army is just sitting around eating lunch.
Finally, I am also having the "Lead Troops as a Warlord" issue where there is a delay between the leading of the troops and the promotions being assigned to them (one turn delay). Not sure why that is occurring, but I see it was previously reported.
Other than these combat issues, great job everyone. Very impressive so far.

Looking forward to playing more.
Snoop