Loadout for a school shooting
When I was in Highschool and Middleschool we only had like 2 metal detectors so in the morning there would be a really long line wrapped around the front of the school waiting to get in so I always thought the best place to do a shooting would be the metal detector line since people were all lined up perfectly bunched together with nowhere to hide and you could just drive away instead of killing yourself.
Best I could come up with was an AR-15 with a self-milled lightning link, 150 round drum and a modified foregrip to snugly hug / mount on the passenger side door like in that one episode of Criminal Minds. Plop your rig onto the door, roll slow and hold down on the trigger while going down the line until you're dry and speed off before anyone has even called it in. I imagine a run like that would nab you around 22 casualties and give you enough time to get away and torch the car.
>school drug dealer