S-60 and ZSU-23 guns are from the 50's. Time will tell if the BTR-50 show up on the front.Russia should have plenty of vehicles in storage. The question is how long it will take to get those vehicles overhauled and into service. How many BTRs out of storage have even seen? Almost none? For 1950s armor on the front lines, can you provide an example? BMP-1s are out of the late 60s, and BTR-50s haven't been seen on the front lines yet (in fact we've seen one train with them, and one shot of one up close in some sort of garage). The T-62 was introduced in '61 but the T-62Ms we're seeing are an upgrade out of the 80s. And again production of armored vehicles in Russia is still ongoing including apparently MRAPs, as well as traditional IFVs, APCs, and improvised armored trucks.