Robots meant to do tasks. Some of 'em spy tasks. From what we figure, exos were war bots with human personalities in 'em. [He thinks he can almost remember where they came from. Almost.] People still make robots to use 'em. Nobody makes Exos, though. Ever'body is pretty sure they come from a place called "The Deep Stone Crypt". They all think of it. They all dream of it.

[Robots that actually dream. What a world.]

Doesn't matter. My scannin' device ain't here and I'm fine without it.

[Which is for the best. Good riddance. He can figure things out with his own two eyes and feel a world better]