Copenhagen looks like a problem with Darkest Hour itself- I can't believe that was never spotted in testing. Can you mod straits out of the game?
I'm only an occasional Kaiserreich player but I don't find Copenhagen an untoward problem in DH. If you're looking for a rationale for it being a hard nut think of the effect of heavily mining the Belt. On that premise the Danish fleet is only there to ward off the minesweepers you'd otherwise send in, and you can deal with it as you would any other fleet that you can't get at by sea - Navs.
Copenhagen looks like a problem with Darkest Hour itself- I can't believe that was never spotted in testing. Can you mod straits out of the game?
I think National France has events to get their provinces back from their allies, we just forgot to make one for Delhi (They've been the lowest member in the Entente before this version) Liberation of European states is supposed to be you manually releasing them (The AI will do that, IIRC), though there should be events to de-puppet them.
The Exile''s triumphant return to Britain (And France, technically) is all the reward the Entente gets- I don't think I've ever seen them actually take over the rest of the continent before now! The rest of the empire doesn't get any kind of pat on the back for things, which seems in character- it's not like Germany's puppets get thanked for their part in defeating France.
Copenhagen isn't usually a problem when it's owned by Denmark, since they have basically no army or navy to defend it with. It becomes nigh impenetrable when a stronger power, like Germany or France, hold Copenhagen and properly garrison it.
If it were simply a 'tough nut to crack' that'd be one thing, but the only way to take Copenhagen and the island next to it in this version is by mass aerial assault. That is absurd, and should be changed.
Really sounds like a DH patch problem tbh.
If you fix Copenhagen's strait issue maybe look at the Black Sea too, unless it's meant to be literally impossible to leave it with ships
Did Constantinople even stop movement through the Black Sea to the Mediterranean in this time period though? I honestly can't see the Turks saying to Russia that they can't go through their land. It's even more stupid when you're at war with them.
Anyway the only issue I had was that for some reason my naval units cannot leave Singapore.