There's been a theory developing since launch that Arc Raiders' robots are reacting to players' habits and learning how to counter them. Stuff like searching spots we often hide in, or finding better angles to pick us off. I've even read one comment saying that the Arcs will soon start taking out rats because they know where they hide, and watched Leapers cram themselves into ever-tighter spaces.
The idea that the Arc might be evolving seems to stem from a talk given by Embark's Tom Soldberg, a machine learning software engineer, back in 2021, about how the studio used the tech to teach the in-game enemies how to move and navigate the environment organically, rather than animating it all themselves.
