I just bought two of these. The kit looks OK, but I cannot help but wonder that they must have had bigger guns than was in the kit, especially against the fast-moving UN jets they faced.
Many of the Allied ground attack aircraft in Korea were not quite as fast piston engine types. F4U/AU, AD, B-26, F-51, Sea Fury, Seafire, etc. And of course the communists did have heavier AAA guns- 37mm, 57mm, 85mm around likely targets. Many of those had radar control for more accurate fire.