Hearts of Iron 4 (HOI4) – Best Air Doctrine
This guide for Hearts of Iron 4 breaks down the three available air doctrines: Strategic Destruction, Battlefield Support, and Operational Integrity. While all offer general bonuses, Operational Integrity is generally recommended for most countries due to its effectiveness in air superiority battles and fighter survivability, though Strategic Destruction and Battlefield Support can be beneficial for major powers or specific playstyles.
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