Because it does not exist. You could until now not link to even a single case of home invasion by assault weapons and defended by the owner with assault weapons. Not one. I stand by my claim you can't find 10 in 10 years.
Ok, well I can't exactly have a sensible discussion with you if you're going to ignore links provided to you and call everything fake.
As far as I am concerned, destriero has your ticket perfectly.