No clue, I’ve never seen hard evidence on how the soviets arrayed their surface units. I do know that the most effective anti missile weapon they have in DCS currently is the SA-N-9, so I arranged the fleet to maximize overlapping coverage of those launchers.
In the era that book was set, there’s some real irony in a pilot who throws himself at Hanoi every night whinging about a 60s era Soviet Task Force. Shrikes exist, protections against saturation attacks do not. Jake needs to put on his adult pants and get in the jet.