Just some feedback on Sweden, I won the Historical victory last night and it was painful
On a side-note, I managed to unite Sweden and Denmark (Kalmar Union) in 1386 and I took a huge hit in stability (down to -11), only recovering to 0 in 1416. I switched to Imperialism at -6 when I discovered banking, it dropped down to -10 following the anarchy, up to -2 after capturing the Barbarian Visby and settled at +2 eventually in 1418 mainly due to building stability buildings.
I founded Protestantism in and immediately converted and declared war on Prussia because it was settling in on the Baltic coast in Novgorod after I conquered and collapsed the Republic and the cities were still in revolt leaving a huge vacuum.
I raised the city Prussia settled and discovered that, even though Prussia's state religion was Catholicism, the city didn't have a Catholic community so it didn't count towards the razing meter.

I pushed into Livonia and Courland, razed three cities with Catholicism (Memel, Riga and some other one) and the meter showed I had done so
Prussia converted to Protestantism and Catholicism disappeared in their cities, so I conquered Königsberg and Wehlau, Prussia collapsed and I conquered and kept Danzig too. I then razed two independent cities in Poland with Catholic communities (which collapsed eons ago), Poznan and Krakauw if I remember correctly, and met the UHV requirements triggering a Golden Agein 1564!
There was only one foreign city on the Baltic Coast left, Lübeck owned by Germany, I healed my troops, marched them on the German side of the Oder within my cultural borders (having captured the independent Stettin decades ago), declared war and captured Lübeck in 1580.
The painful part was having to play for an additional 170 years (110 turns) after I had met all the UHV requirements
The game got incredibly laggy and unstable, and I had the memory allocation failure error approximately every third or fourth turn whenever an AI wants to talk to me

Quick saving was the order of the day, but it was painful and slow
In the end the mighty Swedish Empire had researched everything but the Industrial Revolution and even built the most colonies (who knew Bergen is such a production power house!

) Oh, and the formation (+25% against cavalry) promotion for Sweden is awesome against the Prussians with their Teutonic Knights and general propensity towards creating knights.
The one issue with Sweden is that the production (military and otherwise) power houses are in Sweden and Norway, on the other side of the Baltic, and the action is on continental Europe. Novgorod eventually became my base on the 'mainland' because Sweden, on this map, is an island.
In 1748, after having traded six different resources and 118 gold per turn to England for one Atlantic Access resource, I spot a little black dot just North East of Denmark.
Was there Antlantic Access in Scandinavia / the Baltic prior to RFCE++? If so then I must have always missed it because when I play(ed) as Germany, I usually (re)conquer Groningen and Amsterdam for Atlantic Access instead of Denmark
I loved playing Sweden, and loved the huge Empire (not the largest, Russia was no. 1 in terms of area, or the largest I've ever had - France makes good empires

)
However, the late UHV is painful, as I remarked above
In this game Spain didn't seem to have an opportunity to even exist, as there was no Leon (not even a razed one) and no other cities in Castille or the traditional Spanish settlement areas

Cordoba (the Duchy, not the Caliphate

) eventually collapsed Aragon and Portugal, capitulated the respawned Portugal and Morrocco, and even collapsed France twice! (Okay, England had a huge role to play in that too

)
Cordoba just stays too strong if the Iberian Peninsula is represented / controlled by AI Spain, Aragon, Cordoba and Portugal.
And IMO the strengthened English holdings in Picardy and Normandy have made them too strong and I often see France collapse as a result. It does sometimes respawn (in 1698 in this case), but in the south and west of France (Brest, Bordeaux usually).
In this particular game The Ottomans were super strong and Byzantium and Bulgaria capitulated, with Serbia and Hungary collapsing.
The Maghreb is much better now, and the additions of civs there has made it more lively and much more historically accurate and, for once, actually occupied by something other than Independents.
I hate the Independents, but the Swedish razing UHV gave me great pleasure (and revenge) as I sacked and razed indie Catholic cities
What I hate the most is when I declare war on an independent city in Volhynia, the ships from Groningen, for example, come and raid my coast

Because you're focused on central and eastern Europe, you don't expect an assault on the coast of Norway and Denmark and they end up pillaging all the oceanic improvements
In short, I hate Independents and support any way of reducing them (even if it means razing

)
Lithuania and Poland are incredibly prone to collapse. Lithuania was Sweden's vassal, Moscow declared war and conquered ONE Lithuanian city, and the entire civilization collapsed two turns later
I started a game as Moscow now, and must say that Novgorod and Crimea make for interesting (and unexpected) game play and challenges. In the current game Hungary is also very strong (occupying Kiev) and we're all at war.
I've managed to collapse Novgorod, but Crimea and Hungary are still after my tail.
The Muscovy UHV about no barbarian cities seems overly simplistic and too easy right now, considering the presence and spawn of both Novgorod and Crimea before the required completion date. I only had to conquer three barbarian cities.
