… post-WW2 Czechoslovakia was a Soviet puppet and did what Moscow told it to do.
Except of course when they didn't.
I think it is a mistake to view "the other side" as a monolith, except when they behave like a monolith. The Soviets certainly displayed a heavy hand when it came to political dissent, but they did not control Czech industry with a heavy hand.
The Czech armament industry retained a significant degree of autonomy. Not full autonomy to be sure, but the Soviet armaments industry itself had all sorts of competition between design bureaus, and the Czech armaments industry was a further source of competition.
To wit:
OT-810: Half-track based on the German wartime SdKfz 251 design with slight modifications, produced through the early 1950s.
OT-64 "Skot": Joint project with Czech-built components and Polish final assembly, an 8-wheel APC with turretted HMG produced through the 1960s and early 70s, used by Czech, Polish and Hungarian forces as an alternative to the Soviet-produced BMP-60PK.
OT-65 "Fug": Four-wheel scout car built in Czechoslovakia, initially for a Hungarian requirement and later also supplied to Polish and Czech armies, as an alternative to the Soviet-produced BRDM-1 and -2.
MT-55A: Czech re-design of Soviet MT-55 bridge-layer built on a T-55 hull.
MT-55KS: The Czech armaments industry had some success selling re-designed Russian products overseas. The MT-55KS and MT-55L (maybe -55KL?) provide one example. These were export version of the Czech MT-55A, which was a Czech re-design of the Russian MT-55. Similar Czech redesigns of Soviet ARVs and armored cranes also saw export success, in competition with East German or Polish produced re-designs and Soviet originals.
PM-55L: To follow further on the prior item, this was a unique Czech design, using the bridge from the MT-55L but carrying and launching it from a Czech-original Tatra truck.
Just a few examples of how the Czech armaments industry did not just follow orders from Moscow. As the Soviets watched over them with a heavy hand they had to follow some Moscow-driven policy directions, but they still designed and built a lot of their own weapons.
Or so I understand. Wasn't involved in the processes of arms production … wasn't even in Prague nor Moscow at the time.
-Mark
(aka: Mk 1)