Hopefully an agreement or understanding can be reached between all parties here.
Flight Leaders, while being given a target or mission objective by higher ups, had some latitude in mission planning - certainly the scout squadrons.
Of course when jobs got complicated (multi-units involved or direct support-type missions) things became more "scripted" from Wing.

On that subject let's say I have an Escort the Bombers mission. If I was playing a scout campaign can I modify waypoints of all flights involved, i.e., the escorted bomber flight? Sometimes their waypoint selection (how they fly their mission) leaves me shaking my head.