The Vent Scout is a GMod Monster. He is shown as a Scout from Team Fortress 2 lurking around in vents. Bofore attacking, he usually says "Get away from my vent". But, ironically, he attacks people near, not in, his vents. And he drags them in and kills them. He is Sewer Medic's rival.
He also shares similar powers to that of his rival's, the Sewer Medic. When in danger, he enlarges his head and utters a large scream, which would normally destroy the head of his victim, and in other cases the entire body would explode.
"Get away from my vent," is his signature phrase, which he uses to warn other people of their presence.