Question about culture/freedoms in the Air Force

Just had a few questions. What kind of freedoms do you lose once you enlist? Are you allowed to express your opinions/ask questions in your job?

Also, has anyone ever been told to do something dishonest by their CO? (Weird question, but only asking because in the past I’ve had a boss tell me to do things like fabricate numbers)

Thank you! Thinking of enlisting with a bachelors and hoping for cyber, intel (maybe linguist?), or admin jobs.