Huayna had Cavalry, Artillery and Anti-Tanks, but no Infantry or Tanks. It wasn't really a knife through butter style war like Monty once I started an offensive with Rifles against his typical junk, but my veteran Infs did quite well here.
I did lose Lyon, but somewhere, something came out of rebellion or got a border pop, and there it was. Kind of convenient, as I was planning to go to bed after taking Cuzco anyway.
Both Napoleon and Montezuma ended u surviving as OPMs on their exile islands. The former actually ended up becoming friendly near the end due to Representation and his newfound hatred of Huayna Capac. Kind of a shame that I didn't manage to take out the Aztecs, really. Kublai has been at war with him for centuries after I bribed him, nothing ever happened. Once a frigate blockaded a turn or two, then sailed away again.
Hard-fought, but I finally got a win with this guy, and the traits actually came in quite handy - IMP more for the GGs than the Settlers, something like Ramesses probably would have been better all-around for this start, but now it doesn't matter. The turning point was around 1000 AD - I had lost Nicomedia (NW ice city) to Monty who had previously also beaten Willem around (had Maastricht for a long time and razed another city which I didn't notice while playing, blame the BUG log spam) and had a nasty late classical doomstack. I peaced him out but got under assault in the east from Huayna and Napoleon, barely holding out with a few whipped maces and cats... but then my Rifling beeline finished, Monty's longbows weren't up to the task and the lime green turned grey a lot quicker than it felt like in game - and poof, half the map is grey and I win.
I don't think it ever got much bigger than this size - I could have built commie watermills, but didn't want to get rid of those old and well-developed towns. Still, the absolute core of my empire until near the end, an all-around good city. IMP actually was quite nice for the wonder spamming as the 2 or so settlers I built in here left a lot of time to build more wonders, and I still got 8 cities. Would a REX (direct east was kind of lousy though, so I only could have rexed towards Tenochtitlan) or a rush on Monty have been a better plan? Probably, but SSEs are just really fun to play. I used exactly 3 GPs not for settling - Academy scientist, shrine prophet (just the jewish one), Medic GG. Just like it would have been better not to try and build a block of one of my religions (3 of the 4 I only founded because I wanted the techs - CoL from Oracle, Philo because I was still at peace and hadn't given up on Lib yet, Theo for the AP - I was in Confucianism at first, as it had better domestic spread, but zealot Monty and Willem (later became kebab, but was jewish for most of the game) got Judaism so it seemed like a great choice against the smaller Buddhist and Hindu countries east. Ha!
Despite this being legendary, culture victory was not really an option though - too aggressive neighbors and no really good third city in my original land. (Thessalonica, directly NW, was great but no match for the city of the world's desire). I had Sistine and lots of religions, but Monty, Napoleon and Huayna were jerks and later, when you have a big stack, you use that big stack.