The Manual says:
An air unit may fly a mission, support, escort, or intercept twice a turn including the enemy’s turn.
I know, usually, I get two operation points on my turn and when I do two operations it does not effect what the unit can do on my enemies turn.
What can the air unit do on the enemy turn? Can it
a) 2 actions
b) intercept twice and interdict twice for 4 total actions.