So I fired up Brazil on Emperor to get a feel for how to OCC a CV, what a mess lol. I actually got the Lingua Franca achievement for getting and keeping the WC for the whole game, had to beat myself from winning a DP...
Pushed through Freedom as world ideology and watched as England took Order and promptly had York defect to me and leave big hole in the center of her empire...
I let one of the fairs pass through and wasted a ton of turns on it. After that I made sure I proposed and then voted down the fairs every time proposal came around. This seems like a good thing in OCC because you can not afford to waste time on the fair and it will not be good to let the AI get it. By proposing and defeating it, I deny it to the AI and take no diplo hit for it. I doubt this will work on Immortal/Deity with out some luck.
I did not build the musicians guild until late modern era. Is this a common strategy? I used surplus GW's to finish rationalism and oxford to bulb telecommunications and internet, then popped my first GM the turn following entering the info era.
Took full tradition, consulates, freedom>media culture, aesthetics, and full rationalism in whatever order was appropriate. I would think even on Deity this would be reasonable since I was tossing policies into random stuff at the end. I did forget to open exploration for the Louvre though
The only themed wonders I got where Uffizi, Sistine, Hermitage, Oxford. Is Uffizi gettable on higher difficulty? I am also wondering if Oxford is better used for plastics or radio for the earlier theming. On the other hand in OCC ~450bpt is about the best you can get, so getting past the internet quickly might be difficult without a lot of GS's that you wont have because Arts Funding should be in effect. I only had 3 saved for bulbing and a 4th popped at the very end.
Which brings up the next question. Where do people stand on early tourism? I basically just got open borders as early as I could afford it, sent in TR's to those I could reach, and diplomats to the culture strong civs and let myself get exotic but did not push for familiar until later. It did take 3 GM's to bomb Kamehameha into influential, not sure it would have been enough for an Immortal culture powerhouse though.