Issue: giving an aircraft an attack order once it is airborne can result in it backtracking to the previous airfield, instead of continuing to its current objective and then continuing on as intended. Sometimes this results in hours of wasted flight time.
Suggestion: if a move or attack order would cause an aircraft to backtrack, add a confirmation step, similar to the warning about entering neutral territory, prior to negating the travel already completed.
Alternative suggestion: for ranged and air units, add an "add attack target", so that movement orders can be preserved while adding follow-on attack targets.