Interestingly, it appears that parts from a salvaged City Scanner were used in one of the more recent additions to Dog both machines have a similar frontal design, though Dog's face possesses three face plates while Scanners have four. During emergencies, Scanners can be mass-deployed in thousands from the Citadel, to perform a city-wide, and possibly out-of-city search such as when Gordon Freeman was detected in City 17. Scanners help by locating targets and alerting other nearby Combine units. Other applications include reconnaissance and searching for wanted individuals. They are commonly seen patrolling City 17's Canals, searching for refugees. A critically damaged scanner will usually attempt to kamikaze dive into its attacker, while spinning and emitting an alarm.Īs the name implies, Scanners are generally used only in cities and are rarely encountered anywhere else. Scanners are lightly armored and can be destroyed easily by gunfire, impacting against walls or being hit by objects. Scanners are powered by a single Combine battery, which can occasionally be salvaged from a destroyed unit and reused for the HEV Suit. The scanner also has a spotlight mounted on its top, which is used for illumination and can move independently from its source. The flash emitted when taking an image can temporarily blind a person, even when not looking directly at the flash. Scanners are equipped with a searchlight and a camera used to take photographic images. City Scanner using its searchlight on the Trainstation Plaza.
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