To my eternal shame I used to wargame a lot of WW3 type stuff back in the late 70's to mid 80's. Get yourself a copy of SPI's old Nato Division Commander.
Thing had manuals that would not have looked out of place in a War College, including discussion of weapon yield and target placement to maximise Ivan's tank losses. Thanks to my wargaming days I knew more about NATO deployments and Ivan attack routes than some of the Occifers on my Station Aircrew selection board.
As for the definition of Tactical Nuclear Strikes - didnt someone once ask how far West German towns were apart on average, 'About 5 kilotons' was the reply.
I did like the quote in SPI's Nato wargame. "To simulate the effects of Strategic Nuclear exchange pour lighter fluid over map and apply heat"