The Isolator: Gunfalon

Larry, Sina, Thomson and other independent descents who landed on a certain planet with a special mission. What they saw on the planet was a closed space "dome". There are multiple domes, not just one, and they are kind of strange, such as a dome that closely resembles the world during World War II, and a dome that has a medieval fort. And people who are frightened by the war... What the hell is this planet... Apparently someone set it with a clear intention. But who...