Does anyone remember the good old sim, Aces of The Pacific? Well, they had an add-on, - AOTP 1946. A what-if campaign based on the idea that there was no nuking and the US invaded Japan. So you had the Bearcat and the Tigercat as well as the US first Jet (Shooting Star) and on the Japanese side you had the first Jap jet (Pretty much like a 262) as well as a funny plane with a push propeller, - can't really remember what it was called.
In my opinion that would be the scenario for those planes, but not the MA. Neither the Bearcat nor the Tigercat fired their guns in anger in WW2.
And what BS is this about the Dora? The Dora saw a lot of action, and the Ta-152 saw some as well. There is no question about that.