So now I get to ramble about fun plane games since I've played a bunch of the Ace Combat games over the past year.
-Ace Combat 7 feels like the devs had a plan for the game and then went off in a different direction sometime during development. The first half of the game involves trigger landing in the penal squadron 444 for allegedly murdering the former president, then you get pardoned, the rest of the squadron gets shipped to Tyler island(without their planes for no discernable reason) and everyone fucking forgets you were ever in prison to begin with. Nobody ever brings up the fact you allegedly murdered Fmr. Pres Harling and there's no real resolution to the arc other then a passing mention a drone was responsible for killing Harling and they were gonna reopen his case (Apparently there was cut dialogue about an Osean Pilot killing Harling and letting Trigger take the blame but since they cut this out the whole plot threat feels very unresolved.) Late in the game there's a mention of Penal Squadrons turning on their captors but this doesn't show up in game and doesn't affect anything beyond a mention or two so it's unclear why they bothered to mention it at all.
It basically makes me think Trigger was supposed to stay in Spare Squadron for much if not all of the game but somewhere along the line they changed it. There's also the fact the war more or less seems to end after the capture of Farbanti but then you have 5 extra missions of "Erusean Civil War, Raid the castle, Take down the Arsenal bird and then the whole impending Robot war thing that gets inserted right there at the end" and makes the whole thing feels really all over the place. Also, Cosette's story doesn't really seem to matter much despite the amount of screentime she gets. I guess it's there so she can feel bad for being a propaganda shill for a regime that conquered most of the continent almost unprovoked, put a complete nutjob in charge of a massive nuclear submarine and then moved on to committing war crimes(including killing her doggo).
There's also a cutscene about midway through the game where Avril blackmails McKinsey to get a seat on his transport plane and then.....goes to tyler island anyway. So the entire cutscene feels pointless and it's unclear why it's even there. Why bother with the whole phone call and presumed Blackmail thing when it doesn't change anything? Fuck, on a related note, why send a bunch of pilots to tyler island without their planes when air support is apparently desperately needed considering how badly the situation on the ground is shown to be. They're just given rifles and....expected to do something? Who the hell uses fighter pilots like that? Hell, it was already established the reason they had the penal unit flying armed aircraft to begin with is because Osea is apparently so desperately short of pilots they're pulling convicts for duty(including the guy who allegedly killed the president WITH AN AIRPLANE!).
-Ace Combat Zero, despite having some cool missions, has a lot of filler for a game that isn't particularly long and apparently this is because of the Mercenary/Soldier/Knight routes, but even the "Choose your mission" missions don't really seem to mean much. Also, the frame story of "Reporter interviews a bunch of pilots to find the 'Demon Lord'"mostly feels like it doesn't really tell you much in the end. Especially since he never actually solves the question he set out to find "Who is the Demon Lord?" and the answer is "Uh.....nobody knows apparently" That guy who practically won the Belkan war by himself and prevented a nuclear attack? Nobody knows who the hell that guy was. Even Pixy, the guy who flew with him, never bothers to answer that question, it seems.
Also, it feels like a massive wasted opportunity that Ace Combat 5 had this big plot thread about Belkens infiltrated two superpowers to have them bleed each other dry in a major war, but instead of seeing the beginnings of that in Zero, you get this other storyline about Anarchist wanting to nuke everyone because....war sucks apparently? As amusing as it is to hear Pixy lose his shit near the end ranting about V2 and Borders, the World With No Boundaries thing never shows up again in any of the later games and has nothing apparently to do with the belken grey men or the events of AC5.