I vaguely remember a user debunking this claim but I cannot find that comment and I don’t remember what post it was on.
There is something that I want to nip in the bud before anybody brings it up. A counterargument that some anticommunists like to repeat is that all of Soviet space exploration was based on the work of Axis scientists, ergo the ‘Mongol hordes’ never really invented anything. I’ve mentioned this before, but I’ll still repeat it:
The remaining Axis scientists that the Soviets did capture still had to live in unglamorous conditions: on some projects the Soviet authorities limited the rôle of the Axis specialists merely to consultation and practical training.