Fire accidents occur globally every year, resulting in significant human and material loss. This has prompted steady advancements in firefighting robots. However, challenges remain in improving accessibility to rugged terrains, such as mountainous regions and obstacle-dense environments. The robot proposed in this study is a remote-controlled firefighting robot that can be deployed in fire scenarios that are difficult for humans or fire trucks to access. An 8-wheel robotic platform with a linkage structure was designed to stably navigate rough terrains, such as mountainous areas. A camera equipped with a 3-axis gimbal system that minimized screen tilting and the vibrations caused by slopes or uneven terrain was implemented to enable stable monitoring. This system allows real-time assessment of the fire scene. The designed pan-tilt mechanism controls the nozzle direction, enabling precise targeting of the fire. By deploying robots instead of humans or fire trucks during firefighting operations, human casualties and material losses can be effectively minimized.