From everything I can see Karnak, it would fit the same parameters as the Meteor. It was used in ground attack during that short Russian offensive against the Japanese. It at least had the one claim. Whether it's a valid 'kill' or not, I don't know we'll ever find out.
Unless someone gets very lucky and actually finds some official Soviet document confirming the kill claim but it is still very plausible it happened. Some reports have the Japanese plane as a Ki-43 and others as a Ki-27, which obviously makes verifying the claim that much harder but both types were active in the area. The IJAAF 2nd Air Army were flying Ki-43s in that area, both as fighters and in special attack units targeting Soviet armored vehicles, along with the Manchukuo Imperial Air Force that also flew Ki-27s, which was the primary fighter for the MIAF, along with the small number of Ki-43s, Ki-44s.
It's entirely possible the claim is true, all the right players were in the area at the time.
ack-ack
