Axis & Allies Developer and Playtester; War of the Ring Editor and Playtester
Kevin, can you elaborate. What is the rules reasoning here. Is it because any fighters sharing an area with bombers only conflict if the fighters were explicitly directed to intercept the bombers? Something like that?
Air units have the ability to treat hostile spaces as friendly during movement, so the bombers could pass through the hostile sea zone on their way to attack. After the attacker's combat movement was complete, the defender (UK) had the option to either scramble the fighters to the sea zone, use them to intercept the bombers, or let them sit and do nothing (each fighter could act independently of the others). Since the fighters were scrambled, they moved into the sea zone at the end of the Combat Move phase and were not in the same space with the bombers during the Conduct Combat phase.
There is no concept of scrambled planes intercepting movement in the game. Scrambling occurs after all of the attacker's combat movement is complete, so scrambled planes cannot block any of the attacker's movements; they can only aid in the defense of the destination sea zone.