What an ignorant article. The Soviet union was a peer to the "Western" and "Modern System" and they would totally use chemical weapon during a conflict, asymmetrical tactics and in general any underhand methods that they could think of. Typical Nato way = The only way article. And the Soviet union was more mechanized and earlier then the US. If anything Nato was the static tactic user during the cold war.

Source: https://fas.org/irp/doddir/army/fm100-2-1.pdf Page 186, section 16-3