Thinking family of vehicles including the base S tank, an MRV/ medium tank with a medium calibre turreted gun, a LRV with a turreted auto cannon and ATGW, a heavy ATGW TD, a SPAAG, a SPAAM and depending on capacity maybe even an APC or AIFV. Basically all covered in the thread to one degree or another but grouped together in an enabling Armoured Cavalry Regiment / Squadron that would beef up a light infantry brigade or battalion into an armoured one.