Team Yankee was good but it uses Hackett's book as a backdrop.
So basically they have a defensive engagement, meeting engagement, and then go on the offensive into East Germany.
I can recommend Chieftans by Bob Forrest-Webb
Chieftans
It is told from a US and UK perspective but mainly deals with the Brits.
It does feel a bit unfinished in that some story lines just disappear.
But given the ending it is probably the most accurate depiction of WW3 in mid 80's Europe.
The Hackett books themselves are good reads.
He wrote 2:
The Third World War: August 1985
The Third World War: Untold Story
Amazon has a few copies and there are PDF's knocking about.
They are a bit British "What Oh chaps, balloons gone up and we're off to give Ivan a bloody nose " if you know what I mean but there are some really good Naval bits, especially in the Untold Story book.