http://www.gunsite.com/courses/specialty.html
They talk about using it in their Automatic Weapon course.
Other than that, your looking at Blackwater or some of the groups that specialize in PSD (Personal Security Detail) training.
If you're really interested in "self" practice scenarios, I'd recommend doing a "3-gun" shoot in your area. They setup different walk through shooting situations that require you to use a hand gun, shotgun, and long arm. It's generally a good time and you get to see how other people would "attack" a situation.