There is a good book on a different defector, Oleg Antonovich Gordievsky. The story is excellent - The Spy and the Traitor: The Greatest Espionage Story of the Cold War. https://www.goodreads.com/book/show/37542581-the-spy-and-the...
There is an eerily prophetic work by the high-ranking Eastern European military defector Golitsyn called "The Perestroika Deception"[1] in which he says that Perestroika is a strategic retreat because the Soviets know they are too far behind technologically to have any hope of defeating the west. They will however use that retreat to acquire modern technology and improve their economy so they can ultimately conquer t…
Such generations lasting grand conspiracies just sound too fanciful to take seriously. I think the simpler explanation is that, yes, like the communists before him, Putin is a Russian imperialist. And rumor has it that Putin hates the communists with a fiery passion, for screwing up the grand Russian empire. Putin is doing his best to rekindle the empire, just using a more traditional authoritarian/fascist approach rather than relying on communist ideology.
Much of the old ways of working, the propaganda, supporting all kinds of nutjob groups in foreign countries, etc etc., 'maskirovka' if you like, dating back to tsarist times, continued through the communist era and is still a tool in the arsenal they use. No change here.
As for doomsday weapons with no defense against them, they have existed since the 1960'ies or so in the guise of ICBM's.