I don't want to try this demo with MLeake. He doesn't do it right.
I used to this drill from Rick Miller who wrote (writes?) for G&A where you're like 3 ft from the target and draw and fire three or so rounds into the target while falling onto my back. Might work against the swarm attack. In practice, you have to keep your weak hand way back but for real one would strike them in the face with the weak hand as you begin to fall. My back wont take these sorts of drills anymore.