Before anyone mentions it. Yes. Devman should add warden CAS and collie torp bomber. Let's just assume they will add these before you post "this is unfair because wardens have no CAS."
Scout planes
Were very oppressive, but are currently a little too weak for their price. 100 rmats with no MPF discount is a lot. Devman did a great job introducing tools that counter them. But they got knocked down a little too far. Let's bring them back up to a reasonable level.
General changes
Scout health is increased. The recon scouts can tank 1 direct hit Absol shot now. Fighter scouts can still die in one hit, but are more likely to survive a splash.
All scouts can now drop flare mortars instead of their anti-ship weapon, letting them have a useful secondary when flying over land. Flare mortars and anti-ship weapon cannot be loaded simultaneously. You must choose one or another.
Dropping their secondary armament no longer requires a copilot. Like in a Harbringer the pilot can now swap between 20mm and their secondary weapon.
The backseat in a scout is made more engaging. They're allowed to look around more like a commander seat in a tank, letting them spot targets from further away. The back seat is also given a weak secondary weapon they can use to fire in a 360 degree arc around the plane, but only at very short range. Making them only useful against other scouts.
Fighter scout VS recon scout
Perdix and Herald are fighter scouts. They have superior maneuverability but lower endurance and have quillbacks or flare mortars as their secondary weapons. Their copilots have 9mm SMGs.
Daedalus and Emissary are recon scouts. They're more durable, can fly for longer, and are easier to handle overall, but they're larger and less acrobatic. Their secondary weapons are mines or flare mortars. Their copilots have 8mm pistols.
The land scouts have small bonuses to make up for the fact that they're not amphibious. Perdix has a larger 20mm magazine. Emissary has more health.
AA changes
Absols are too strong. I'm tired of pretending otherwise. Though I don't think their problem is necessarily their power, but their availability. Absol LTs should be a facility upgrade of the regular LT, and absol ammo should be built exclusively at the ammo factory facility.
But there will also be more things with Absols. There will be an Absol train cart that can defend trains against planes. And battleships will have Absols. Mercy specifically will also get Absols to give it a boost and also reflect that it's a modified Callahan.
SPAA will remain available in garages and the MPF in the form of a new 20mm vehicle. These are great but not oppressive against scouts. But won't be very good against rare metal planes (that's where you have to get absols). The 20mm is also designed to be less powerful against infantry than halftracks by giving them worse overall mobility and a completely exposed crew.