Regarding the CV tech - It's useless indeed, but it is also needed to unlock the next set of Naval Doctrines so... had to be done.
Regarding the Red Army - I rather you wait and see.
But I can tell you it's not exactly trampling over Germany...
What the Bismarck was doing up there, we can only assume it was supporting the Finnish invasion of Murmansk that you could see on the screenshot, and disrupting trade with Britain, while protecting a safe(ish) route to supply Finland.
Sweeps of the Atlantic are unlikely, since the Copenhagen defences would make any ship trying to pass a sitting duck... Not to mention we would risk leaving the Baltic undefended.
And building offensive Carriers... well that's just not our doctrine of using them really. Even if it was, they wouldn't be ready in any useful time.
Anyway, what I really wanted to post was...
May you have a very happy Christmas readAARs!