T317 mV. Really long and messy game, but I actually had fun. And apparently, you can be behind in tech and still win, as long as you have enough production and gold to pump out your lower tech units and outspam the AI.
Anyway. I went Liberty and opened Piety for Mud Pyramids and then decided to finish off Piety to get a Reformation. I picked Religious Fervor to buy industrial and later era units, and let me tell you: this Reformation belief is complete and utter sh*t. Artillery costs 2000 faith, tanks cost 3000-3750 faith depending on the era... TOTALLY NOT WORTH. However, I thought that my religion wasn't bad, as I picked 15% growth rate and 15% border growth pantheon. Combined with mud pyramids and liberty opener 1 cpt, you get nearly Tradition-like border growth and a bit of food.
The plan was to do a modern armor rush, but I was falling on behind in science and my economy was in such mediocre shape that I had to bulb scientists and Oxford Combustion to start a war because war is almost always a profitable engagement.
So I started war with tech deficit, and it took me quite a while to finish the game.
Part 1. Western war. This was actually the easier half. I bought 3 artilleries with faith (2k faith per piece) and upgraded Mandekalu cavalries into landships to go after Liz. I actually puppeted 4 of her cities: 2 for oil, London as cap, and 1 other for strategic positioning. That got me into massive unhappiness, and the only solution was to plow through the wonderwhores to the south, which I did from the captured English city. I had previously orchestrated multiple wars between the AI's, so by the time I had come to Vienna, it got barely captured by Ghandi, so I DoW'ed him and took it for myself, getting a few wonders and upping up my happiness. Maria gave a city in peace deal, which I sold to Ahmad for 4000 gold and asked him to DoW Ghandi, which he happily did. Then I took another Austrian city which belonged to India and sold it to Ahmad. Once I took Delhi, I sold it for 9999 gold because the game won't let you get more, even though he was offering me 408 gpt for it on top of that. But... oh well. I used the 10000 gold to buy more troops and immediately attacked Ahmad, taking Delhi and soon capturing Marakkesh.
Part 2. Meanwhile, Bismark eliminated Attila and spread to 23 cities, becoming the tech leader. He was the first in military, and my spies couldn't steal anything even with an Autocracy policy which allows to steal twice as fast. I think at one time it said "gathering intelligence: 614 turns."
Well, ok. By that time I had some aircraft and tanks, so I quickly took Attila's Court. However, then it became a massive chore to chew through his army and to take cities. His high army score was due to his massive navy which consisted of destroyers, battleships, missile cruisers. Every time I took a city, he would retake it with his navy. But it was to my advantage because at least that oil wasn't going into Panzers. By the time I got to Berlin, he started dropping XCOMs, which was really scary. It must have taken me over 50 turns to get through the German peninsula and to take a few cities from him. Every turn I would lose 3-4 tanks/modern armor, but I would also buy/build just as many, so it was simply a war of attrition. After I took out Munich and saw Enrico's border, I quickly signed peace with Germany and rushed to Venice, citadel-bombing him up to the city.