There just too much air craft in this game.

Air craft MAYBE, just MAYBE, is the best thing you can have in a war. It does many things, is fast, works at least "ok" in any conditions. Can support in land or sea. But in HOI4, the absence of a limit for Air craft is Just DUMB. Once you solve fuel issues witch is easy, there's no bad side of using Air craft. And It would be solved in a simple form: combat width in air craft too, or simply block after some number of planes per region.

I remember in my last WC campaign, on a certain time, I was putting 10k jet fighters + 5k CAS in multiple regions and this is an absurd. The game is so good with land combat width, you can't just overstack 200 divs in a border. So why can I stack 15k+ planes per region with no consequences?