Uh... sorta? They're somewhere in between machines and worshipped like deities. AIs that make food for the race that makes 'em. Weird cycle there. The Fallen make 'em, and then the Servitors feed 'em and get put up on a pedestal for it.

Shanks are just kinda shooty shits. That guy seems more personable. The heavy shanks got good strong shells in you can get under when it's rainin'.