In Batman Arkham Knight, the Line of Duty side quest challenges players to track down and save missing members of Station 17 held hostage across Gotham City. Completing these rescue encounters is essential for reaching total completion and capturing Chief Underhill. Finding every hostage requires careful exploration of Bleake Island, Miagani Island, and Founders' Island as the campaign progresses.
Locating Hostages Across Bleake Island
Bleake Island features six firefighter rescue encounters that become available early in the story. Players start by saving Firefighter Wood at Dixon Dock, which unlocks the broader mission log. Other crew members are scattered across rooftops, docks, and secluded alleys near Chinatown and Falcone Shipping.
Approaching these areas quietly allows you to evaluate guard setups using Detective Vision before initiating combat. Leveraging gadgets like smoke pellets and the Fear Multi-Takedown helps isolate armed enemies quickly. Clearing these initial sites builds steady momentum toward tracking down the remaining crew members across the city.
Tactics for Clearing Miagani Island Sites
Miagani Island contains four firefighter rescue missions that open up after unlocking bridge access. These encounters frequently feature thugs positioned on elevated platforms, balconies, or near water edges. Strategic entry is crucial because several locations include armed guards or automatic sentry turrets.
Players should utilize the Batmobile for long-range combat support when dealing with outdoor groups near shoreline docks. Utilizing the Remote Hacking Device or Disruptor simplifies taking down fortified defenses before dropping in. Defeating these hostiles secures essential progress toward unlocking the final island objectives.
Rescuing Crew Members on Founders Island
Founders' Island holds five firefighters along with the final objective involving Chief Underhill. The environments here present complex urban layouts, including underground structures and multi-tiered port facilities. Some encounters require destroying weak walls with the Batmobile winch or navigating hidden manhole entrances.
Careful planning is required to handle heavily armed mobs and Brutes scattered throughout these sites. Using environmental takedowns and disarming dangerous weapons ensures Batman survives tough brawls intact. Saving every member on Founders' Island reveals the chief's final location.
Saving Chief Underhill and Finishing Line of Duty
Once all 15 firefighters are rescued, Batman receives the location of Chief Underhill on a rooftop in northern Founders' Island. Unlike standard combat arenas, this finale plays out as a large-scale predator challenge. Overcoming a dozen armed thugs and sentry turrets requires stealth, vantage points, and tactical gadget usage.
After neutralizing all hostiles and untying the chief, Batman escorts him safely back to GCPD headquarters. Completing this objective awards multiple upgrade points and concludes one of Gotham's most vital Most Wanted quests.
