I was under the impression that the Soviet TBMs and SRBMs were primarily supposed to use chemical weapons on air bases, equipment lagers and supply depots?
Possibly, although that would invite a chemical and possibly nuclear response so I don't know if they'd do it first up. Also the DSP satellites track launch signatures so operators would be able to tell from the launch location the likely payload, launches from the GDR would likely not make NATO as twitchy as launches from Belarus.