The entire US carrier is anchored at Stockholm makes no sense at all - its been debated in detail at the forum juhlin site but there is no way - as in ZERO PERCENT - that a US supercarrier woud be going to Stockholm. To get it there we are talking upwards of 100km of sailing, almost every single step of it within range of shoulder fired AT weaponry!
And I'm not even talking very sophisticated, modern systems either, RPG-7's and the like! Imagine what you could do with a couple of 105 tank guns or the like, or a small battery of 81mm mortars and delayed fuses.
Also Oxdjupet is a narrow strait in the sea lane into Stockholm. There's a 19th century fortress there. The ferries/cruise lines to Åland and Finland pass though it everyday. Ships that use it that are 28 meter wide are literally brushing the shore. A Nimitz-class carrier is 40 m wide at the water line, 77 m wide max. 317 m long at WL. There is no way it gets thru that strait not without either grounding or hitting something on the shore - and that is if they perfectly stay in the channel.
It is literally impossible for that ship to be there - and it being part of the World at War background needs to be changed. Sorry but unless the USN literally went insane they would never order it there. I dont know who you have as military analysts but its pretty obvious they dont know much about reading maps or physics or navigation.