A plane I think is very interesting is the YAK-11 Trainer, derived from the Yak-3 with a radial engine that I feel is not a very smart decision for train young pilots but it served in several AF of the Warsaw pact and countries close to the Soviet Union. It even saw combat in Korean War and Yemen. I can find some info on Yemeni conflict:
Egyptians used the aircraft extensively during their intervention in the Yemeni Civil war. Egyptian aircraft were modified with Sakr 78mm unguided rockets and two .303in guns in the wings (no idea if in pod or inside thee wing). And were used in the ground attack role.
but nothing on Korean War, only that one was the first aircraft shoot down in June 1950.
Some pics: