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{{SpaceMarinePortal}}'''Cyber-Altered Task units''' ("CATs") are mechanical constructs drones designed to perform simple tasks, like inorganic [[servitor]]s. Programmed with a set of very simple instructions, they are occasionally used by the [[Adeptus Mechanicus]] and some [[chapter]]s of the [[Adeptus Astartes]] as remote probes and retrieval units. Though they do not possess any biological components, their extremely limited programing prevents them from being classified as examples of [[Abominable Intelligence]]. {{Fn|1a}}.

The drones utilise a simple [[Vox]] circuit that traverses in a straight line and relay's [[Pict]]s and other relevant environmental data to the user. When the drone encounters an obstacle they can't negotiate, they rotate ten degrees and continue forward, repeating the process until they can move without impediment.{{Fn|1a}} As of [[M41M42]], CATs had been in service with both bodies for several centuries, or even millennia, although the Mechanicum and the Astartes prefer the versatility and expertise of a [[servitor ]] or a [[Scout]], respectively. Nevertheless, constructing CATs is a popular hobby for Mechanicus Adepts and [[Techmarines]], who claim that the activity is a useful meditative exercise, and CATs are frequently underfoot at any shrine to the [[Omnissiah]].{{Fn|1b}}

CATs were deployed by the exploratory team sent from the [[Reclaimers]] Space Marines aboard the [[space hulkSpace Hulk]] ''[[Spawn of Damnation]]''.{{Fn|1a}}