Many people want to make their own war movies use DCS world. A good user movie says more than ad.
The following options may make it much easier
1. linear controlled replay speed, with which users can make fast forward, fast back world, fast motion, slow motion. (like most racecar sim game does)Throttle may be a good controller.
2. A progress bar, with which users can position where they want to play.
3. More user friendly camera control, providing more options of camera positions when replaying.