Auto-cannons were added to do more damage from fighters to movecraft at the expense of dogfighting abilities and they were not intended to kill players and do more damage than ifvs made for players
Proof of player damage
https://cdn.discordapp.com/attachments/985287223027060806/1211431283012542504/moment_.mp4?ex=65ee2c4d&is=65dbb74d&hm=b287fd7efd28cd01757a9acd912eebb552e3958f39ace5d1d3d7c1b8e6f6bb9a&
Solutions
1) lower player damage by quite a bit
2) limit auto cannon fighters able to be piloted per air craft carrier and zeppelin (I personally am not in favor of this
3) have autocannons make fighters slower
The solution is probably a combination of these as even with a player damage nerf you can still shred heavy tanks with a squadron of 3 too fast