Do you not see the fundamental problem with this attitude given how the scoring system works?
The only way the Axis can defend the objective is to be in position to shoot bomb-laden Allied planes before they can drop their bombs. This was an impossibility in frame 1. The first wave dropped their bombs before they could be intercepted. How many survived in the end is not relevant since their job is over and successful. The kills of planes without bombs still on board is just a waste of ammo.
And all this discussion of the attack timing in Frame 1 only distracts from the greater problems with this setup, which are relevant regardless of when the attackers arrive. There are way too few target objects for the given number of assets who can carry bombs. The A135 distance problem only exacerbated the issue, but it was not the cause of it.
The first wave to attack the target was a NOE raid. Allied CIC created the orders for that.
Axis had no idea there was a planned NOE raid. Tell me how is there supposed to be a fair way to counter a NOE raid? Do the Allied and Axis CICs need to send each other their Orders to ensure defenders can be at the right place and right time?
Why was there no thought from Axis side to plan for the possible scenario of an Allied blitz? If there is only a single target, then Axis planning didn't account for a NOE raid.
Did the Axis scouts take time to climb for altitude? Did the Axis defending squads take time to climb for altitude? Was the T+60 rule so ingrained for planning that the Axis assumed Allied planes would climb for altitude also?
Is your OP more a design issue or should this be a textbook example of one CIC set of Orders being more effective against another CICs set of Orders?