Assalamu alaikum,
1- Correct
2- You must fast but when you’re traveling out of the your base, your can break your fast after you fly away as you are exempted as a traveler from fasting but continue once you come back. If the missions are touch and go and for only few hours, this doesn’t require you skip your fasting.
I have two more questions from your explanation 1- You said fast broken due drinking and eating must be made up a day for a day, means i can keep one day fast for one broken fast and that will pay my kaffara..thats it? 2- If im unable to keep fast for consecutive 60 days, is there any other alternative to it? As im a fighter pilot, i cant keep fast consecutively for 60 days… Jazakallah and regards sir