Fox3s and how planes should be balanced

i think that there should be aircraft classes and they should ONLY face there type of plane (like if you are in a f105 you arent facing fighters or bombers so if you want to go the ez route just play bombers )or make the brs go up and down less then 0.7 of a br and top tier should have like a br at 17.7 or higher
like in the bombcat you are facing su30s w r77s and rvv-aes