I believe it simply means that you have a single province in the french region owned and cored. If it required you to own all provinces in the french region then it would have type = all, if i understand correctly.
Ah yes of course, so that's fine. Any of Normandie, Caux, Labourd, Gascsogne and Calais should count the. So you could give up two or three to get out of the HYW quickly and still qualify.
Occupy Paris can only be taken if you are at war with France. If you make peace with France without completing the mission, then it will fail. When you are at truce with France, you'll get the Vassalize Scotland mission. Occupy Paris will not be available for the second war, since you need your mission to be 'Force Union on France'. In the long run, though, this isn't a huge deal to me. You already start with a core on Picardie, and France has cores on Maine/Anjou, and you'll have France in a PU so their cores are going to be your cores. This really just means you lose the 4 claims on southern Burgundy, which is a decent trade off to save a bunch of ducats and manpower early in the game.
Yes that's true.
Although I'm still not fully convinced that it's the optimal path, the Vassalise France mission definitely offers an intriguing alternative which will be well worth testing.
In 1.3 Parallel Pain would win the HYW while vassalising Scotland, with no allies or at most just Portugal assisting only against Scotland (a time saver more than a resource saver), ending in 1452 with 250+ gold, 12+k manpower, 10+k remaining troops, and no loans.
Unless the combat changes in 1.4 and 1.5 have had any significant impact on the relative strength of ENG v FRA, that should still apply. The advantages of doing it that way will be those four claims on Burgundy, which at the least are worth 4 years of diplomat time, or several hundred admin points, whichever way round you assess it, and similarly I would attach at least a little value to those Provence claims; at the very least they're a free CB on Provence to then Return Core to France. Even more important, the fact that you'll finish with France, and have her available as your subject attack dog, by 1452-1454 instead of a decade or two later. That means you can then use her to pile into Burgundy, Provence, Brittany and sew up the whole of the French Region by 1500, and then switch your focus to colonising early; dealing with the Iberians; getting into the HRE; and so on.
All of that is possible with the mission of course, but it feels more optimal to get France dealt with in the first decade of the game to thus use her in all future plans, rather than having her still looming there, possibly making things harder (perhaps DOWing you after five years and a day, when it's not optimal for you), and definitely not under your control and furthering your plans.
One counter argument, in favour of the mission, is the fact that in an un-modded 1.5 game, subjects will only buy cores, claims and previously owned. That extra 10-20 years of French freedom would give her time to fabricate a bunch of claims which you could then use to feed her once you do control her. That may be quite a significant benefit. Though probably not significant for me as I plan to play with the new VASSAL_FABRICATE_CLAIMS=1 mod flag for the majority of my games. But in general games, that could be an important factor.
So it needs to be tested. How soon can England get out of the HYW and at what cost? How many claims will France generally Fabricate that can later be used to feed her? How soon can England come back to fight again, what allies can you bring, and what is the delta in resource usage between the two ways of fighting the war? What is the practical value of those four Burgundy and two Provence claims? What is the impact of not having France under control in the years 1452 until whenever the player can generally start the second war? What is the impact of integrating France - if indeed the player does so - in 1525 instead of 1505?
Loads of questions, and it's awesome we have this new alternative to try out

These decisions are what make the game so awesome.
Even if the HYW way does prove to still be optimal, there will be many players who don't want to play a gamey AI-baiting strategy to achieve it and would rather lose the war, as England is meant to, and come back later for another go.
Thanks very much for raising the vassalisation mission - it's going to be great fun testing all the permutations and 1.5's England V France thread promises to be the most interesting yet!
