Any kind of "Berserker" SNPC?

I was just wondering if there’s any kind of SNPC in GMod that just goes berserk and destroys everything and everyone, like beats the shit out of people, throws things around, runs extremely fast, and things like that. I’ve tried looking for things on but couldn’t seem to find anything. I’m not sure there is anything like this, but I think it’s pretty likely that there could be.

Does anybody know of anything like this, if there is?

not that i know of but you could try taking an existing zombie npc and cranking its speed and attack force way up so it runs around like sanic with roid rage and tears up everything within reach