The more that I see, the more I love. Especially the inclusion of air sortie Rate. Such a huge distinction between what your air wings look like on paper and what can actually be fielded to fight at any given time
And it really plays smooth and elegant in the game's mechanics. You see it every Clear weather turn when the Soviets are only recovering half of their Flown Air units (because of their poor maintenance and sortie rate) while the Axis are recovering them all! Of course, during inclement weather, matters are even as both sides only recover half their Flown Air units (representing the drop in sortie rate under such conditions).