This article may be intresting because is about a stokpiles of old military tanks and vehicles which Russia may potentially use on frontline:
https://en.defence-ua.com/weapon_and...ocks-6117.html
T-55 in variant T-55M5
ZSU-57-2 which were still formally in service in 2010
ASU-85 are still in storage
And this article is an analisys of devices found inside
T-90M Proryv
https://en.defence-ua.com/weapon_and...tion-6086.html
"Tractor Trops" again in use after Kiev defense now 2023
https://en.defence-ua.com/analysis/w...oops-6094.html
T-62 become more&more common Russian tank on frontlines
https://en.defence-ua.com/weapon_and...sing-6118.html