[Oberon]

I also recommend Red Army, good book. I also recommend the 'Effect' trilogy, 'Red Effect', 'Blue Effect' and 'Black Effect' although I think the ending was a bit weak. Also 'Chieftains' (probably the better one of them all tbh), Team Yankee and The Third World War: An Untold Story (Team Yankee is based on the timeline established in An Untold Story, which I think again, has a pretty poor ending).

 

Too many of the Red Storm Rising-esque novels have a tendency to end it with the Soviet Union falling apart, so the Politburo is couped while the Warsaw Pact rebels against Moscow. Red Army is nice in that it flips the coin and has the FDR capitulate before nuclear weapons are used, but again I think that it would have likely have gone more in the way of Chieftains in which the book ends rather abruptly when a Scud missile detonates a nuclear weapon over the titular tank and its crew.
Likewise in the 'Effect' series, despite both sides having deployed battlefield nuclear weapons, the story still ends with the Warsaw Pact rebelling at the thought of nuclear warfare and the whole war grinding to a halt as a coup over throws the Soviet leadership. Personally I would have ended it with a full escalation and nuclear exchange...but I guess that would have been too depressing for the readers...