I believe Keiller has the right idea. What I'd want is several *powerful* flash units permanently installed at good locations throughout the house, controlled by a wireless remote. If you need to achieve the fire initiative, you get cover, close your eyes, and fire off the flash units. This oughta give you a real advantage. You'd have to issue your challenge before you use the flashes, however, otherwise the perp could still locate you by sound.
I also like the idea of having flash units located around the outside of the house; I figure very few badguys are going to try entry after their retinas have been barbecued.