Night Stalkers

Night Stalkers is a story presented in Resident Evil: The Official Comic Magazine. Leon S. Kennedy, in the employ of the United States government following the destruction of Raccoon City, is summoned to the small town of Saguaro Wells by the local sheriff, after attacks upon locals by giant, humanoid bats. Some snooping leads Leon to a secret Umbrella research lab located outside of town, headed by the insane Dr. Callos. Callos is using the G-Virus in his experiments to mutate people into humanoid bats, which he controls with a sonar device. Leon, after surviving an attack by the bats, infiltrates the lab but is captured by Umbrella guards. He kicks the sonar device, activating the "return to base" button (as Callos puts it), and when the bats return, Leon destroys the device completely, severing Callos' control over the bats, who turn on the Umbrella scientists and kill them. Leon escapes just as the US military destroys the lab with a missile strike.