I suspect the Russian tactics are based around massive use of long-range firepower to pound Ukrainian forces into submission. Massed artillery at one level, but tanks will work to wreck stuff they have LOS to within a couple of miles. In that sense, I suspect they're using tanks as assault guns, and if all they really want is a mobile cannon, a 60-year-old tank is pretty much as good as a similar calibre gun 20-year-old tank. Aside, of course, from the logistical problems of maintenance and so on.The Russian Army Is Running Out Of Tanks For The War In Ukraine. These 60-Year-Old T-62s Are Proof.
Russian units increasingly will roll into battle with whatever old and obsolete tanks still are in working order. And that could accelerate the rate of loss as the Ukrainians expend less effort, and fewer missiles and artillery rounds, knocking out geriatric tanks.www.forbes.com
Apparently the Russians are pulling tanks from the 1960's out of storage, which likely means they're running low on the newer stuff. And yeah, you use what you have, but this feels like they're hitting diminishing returns here because if the "Modern" tanks are taking heavy losses, the early cold war era equipment probably isn't gonna turn the situation around at this point.
And by "Storage", that apparently means "Open air vehicle parks completely exposed to decades of Russian weather". I'm not saying none of them work, but I'm not gonna bet on them just coming out of long term storage and going straight to the field without substantial refurbishment. Unless the Russians are trying to play the "We have more tanks then you have anti-tank missiles" AKA the Zapp Brannigan strategy here, in which case.......yeah.......Good luck with that.
I suspect Russia is going to be able to claim a guarded "win" from this war. It will eventually shift to the defensive and be hard to remove. In a negotiated settlement it will obviously try to use its occupation of places like Kherson as a bargaining chip to be ceded Donetsk and Luhansk, or it could just let the war go cold and squat indefinitely on Ukraine's territory, then Russify those areas with ethnic cleansing and indoctrination.