SASLess, your answer may be revealed in the parallel history project.
It would indeed be fascinating to see whether the NATO conception of a Soviet attack was the same as the Soviet plan and vica verca.
At one time we had a large number (in UK terms) of aircraft planning to exploit a perceived gap between two SAM 2 sites. As the route plans were being prepared by crews I saw an amendment to the SAM sites that placed two SAM 3 sites in the gap. The inbound tracks were planned to pass within a mile of each site.
A spy or a technical appraisal by the Soviets?