It took me a while to finish the campaign, though most of that time was focused in select few missions (fuck you Self Service, I have no idea if it's even possible to pass that mission normally without cheesing it), and my finishing thoughts are - what was the fucking point? It feels like it got cut halfway through. They really wasted an opportunity to do something with it.
Also, I'm sure it was on purpose because it feels self-aware but I loved the Russia stronk memetic bullshit the Russian campaign is full of that only really comes out in the Russian voiceover you can toggle in the options - first mission Demidov is happy to praise glorious pro-Russian guerilla fighters who join you in Narva, but a while later he's very sour about Latvian "so-called partisans". That being said the amount of compliance and surrendering from both Baltics and US troops are very deeply in Silovnik fantasy territory, nevermind that apparently rest of NATO decides to chicken out of the whole fight, but I guess Russians really need a bone to do anything in this fight.
Batalin loved being a bitch the whole time but at least he died doing what he loved, Russian Bannon I guess.