Surprisingly similar to OTL. The State has far less revenue coming in, but it also has, relative to OTL, a minuscule military. No real navy to speak of, obviously no Strategic Rocket Forces, and a much smaller armored component. Most of the Red Army (kept the name, lost the strength) is dedicated to keeping people from, as mentioned, escaping to, well, anywhere that will take them (the Cabal tends to shoot "infiltrators", largely with a wink & nod from the Soviet government). The "death zone" along the Western Alaska border alone requires about 1/3 of the total Red Army Ration Strength. Without the overhead of supporting the largest land army on Earth, massive strategic forces, etc. the USSR is just about the same economic shambles as IOTL. Really crappy place to live, secret police out the ying-yang, zero trust between people, show trials, the whole package. About all that keeps the Soviets afloat is imported grain, much of it bought by the American, Australian, and Canadian governments to help stabilize domestic grain prices, and sold to the Soviets at below wholesale. Still way better than China.