The most badarse technical ever........
AZP S-60 57mm anti-aircraft gun mounted on a Semi - this model entered service back in 1950
From what I gather, Slovakia is using its ammo plant to make all manner of obsolescent ammo for stuff Ukraine has stored...
So we may see more crazy stuff showing up.
Yeah this stuff is old, but ask yourself.. DO you want to be shot at with it? If not, it still has an effect on the battlefield.