From: BC, Canada
I recollect that someone put a post on that said that the Soviet attitude toward "tactical" nuclear weapons was that their use was viewed as a military decision, another tool in the military toolbox.
I don't know the proximty of Nato airbaes in west Germany to towns and cities, but bear in mind lots of USAF and RAF airbases in the UK are close to cities and towns, the UK is a small and crowded Island, I feel confident to say drop a "tactical" nuclear weapon on Lakenheath or Manston , kills 10's or 100's thousands of UK citizens with tactical nukes, i think then that the game designers would find they had no game to play because the response would be NATO tactical srikes on Soviet military targets s far back as Kiev, Minsk, Leningrad, Archangel......
If one flies, they all fly. The Soviets were willing to engage in full scale nuclear warfare.
Otherwise conventional and chemical attacks on said facilities would likely be the norm. These strikes should not be discounted because they can prove very effective - consider Operation Focus which was the Israeli pre-emptive strike that began the Six Day War. To copy from Wikipedia, At 07:45 on June 5, 1967, the Israeli Air Force (IAF) under Maj. Gen. Mordechai Hod launched a massive airstrike that destroyed the majority of the Egyptian Air Force on the ground. By noon, the Egyptian, Jordanian and Syrian Air Forces, with about 450 aircraft, were destroyed. It was also very successful in disabling 18 airfields in Egypt, hindering Egyptian Air Force operations for the duration of the war, and remains one of the most successful air attack campaigns in military history.
In a few more hours, the Egyptian airforce in its near entirety was obliterated and the Israelis had complete control of the skies. Now as this is a "bolt from the blue" scenario, I find it hard to believe that the Soviets wouldn't try the exact same thing. Egyptian air defenses may have been primitive compared to NATO's array of Nike and PATRIOTs, but SEAD tactics and weaponry have also emerged since then. I believe the Soviets would have attempted something like Operation Focus, only on a much larger scale. If successful, that would give the Warsaw pact initial air superiority until NATO figured out what was going on and the USN arrived.
"There's no swimming in the heavy water, no singing in the acid rain."