Firearms Training Unit, FBI Academy. Me and an MP-5. Yes, Virginia...50 rounds of 9mm full auto goodness.
Also shot a Glock 40SW with a good grouping (one stray), and did the situation simulator. I barely got the perp before he pulled a hidden gun that he had taped to the wall. Squeezed of 4 lethal shot .2 seconds before he fired.
I love my job...