Question:
The initial phase step 11 has three activities that occur: 1) Cap, 2) harassment and 3) assign naval patrol. Since both sides can do some or all of the above in which order should one do it? The problem we’re having is that one side might want to see CAP before assigning Naval Patrol.

Answer:
If both players want to fly missions at the same time, roll a die, on a 1-3 the Allied player initiates, on 4-6 the Axis player. Alternate missions from that point on until one side can’t or doesn’t want to initiate a mission. Note that since a player could initiate a one air unit mission, thus forcing the other player to initiate a mission, it may well be impossible to “see CAP” before assigning certain missions. [TEM 59/60]

Source:
TEM 59/60