I had only played 3 and yes it was fun it was extremely visually unappealing, there were too many tech trees and figuring out the divisions, using planes and ships was just notoriously bad/hard. Diplomacy was iffy and the whole neutrality system fucking sucked.
Supplies, resources and production work amazingly in this game it is so much better then HOI3 it is crazy. Trade works super nicely and the mix between civilian factories and military factories is super helpful. I really like how you now have production lines for equipment and numbers for different types then just "supplies" as a single resource. You dont just produce supplies you produce basic infantry equipment, planes, tanks, support equipment, artillery, ect.
Planes are super simple to use. Assign to airzone (ex: All of Mexico is one air zone) ships are the same, one flotilla can be assigned to up to three sea zones. Those sea zones are just as big as the air zones. Diplomacy is more clear. Division designer is dope, you gain experience and that experience allows you to edit your divisions. You can make them anyway you want. Like if I wanted to give only the most basic equipment to a select division design I could and they would only use the basic equipment. If I then want that same deployed division to get the nice equipment I set it and bam they now will be reinforced with the good equipment and the basic will return to storage.
Battle plans are AMAZING, the AI is great at fighting your wars for you and reshuffling your lines. Honestly it is a must to use front lines and offensive battle plans. You can micro once those plans are launched without effecting the plans. I hated the theater and HQ system of HOI3 and the ai was terrible at fighting a front for you here I put 100% faith in the AI. My friend won a campaign as China aka killed all axis with zero micromanagement of battles. He just launched his battle plans and sat and focused on make new battle plans and making sure everything was being produced correctly. He was so excited about it all he forced me to watch his stream to show off.
I could go on but this game is awesome, if you had any HOI experience in the past you will love this game. Highly suggest watching some of the gameplay videos just in case.
Highly suggest this guy he is the really good player from all the videos in this thread. 2000+ hours in the game so far and is a QA tester for HOI4. Highlights much of the good of the game and he sold me day one.
I started a El Salvador campaign with historical mode off and on medium difficulty, I took all of Central America except Panama. I then staged a coup in
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