I think much does boil down to experience and tactics.
Not being a particularly skilled virtual pilot I really can't address the over modeling contentions. I don't have a problem with the B-239 here, but being that the Battle of Midway, while only one battle, was a very significant one in the Pacific, I'd like to be able to have both of the American fighters that were involved and whether right or wrong, few accept our Brewster to be even close to what the Marines flew there.
I don't expect that many would find it acceptable in an early Burma scenario against KI27 and Ki43 subs either.
The record that all Brewster versions of any nation had against the Japanese in RL is rather dismal, and it's difficult for many to believe that the plane itself was adequate and only failed due to bad piloting.
"While the remarkable Finnish accomplishments in the Buffalo are undeniable, aviation historian Dan Ford points out that Stalin's purges and recent expansion of the Soviet Air Force resulted in many new, inexperienced pilots while simultaneously discouraging combat initiative. The result was pilots who failed to scan the airspace behind them, and also Soviet air formations that held their positions in defensive circles while the diving Finnish pilots picked them off one-by-one. The Soviet fighter aircraft used in the early years on the Finnish front also included some obsolescent models such as the Polikarpov I-15 and I-153. After the end of hostilities, Karhunen, the captain and commander of the 3rd flight of LeLv 24, recalled:"
"The Brewster model 239 was good against the older Russian fighters, Polikarpov I-153 Chaika (Gull) and I-16. Hence the period 1941–42 was the best time for us. In 1943 it was already significantly more difficult when the Russians began to use their newer fighters against us... Later, with the Yaks, Hurricanes, Tomahawks, LaGG-3 and MiGs, it became a fight to the death."