Video based real life training for civilians

I really would like to have a video system where violent situations can be trained by civilians. Something like an interactive video shooting simulator but - for civilians.

Would be really nice to train a violent encounter in such a real way. How to react. What to do. What to do not. Hear the sound, See the confusion. Trying to put the student into a "real" situation as much as possible should be an aim.

Does something like that exist? Don't know.

Rory also writes about something like that: http://chirontraining.blogspot.com/2011/04/coolness.html