Just like different parts of the military have different functions and names, Army, Navy, Airforce, Marines.......the infantry guys for the main part would like to discuss the things happening on Terra Firma, while the naval guys more than likely would be discussing things that have to do with water. And then there is some crossover, where they would be talking about things that are common to all military personnel. But for the most part, people like to talk about things that are very specific to them, and in this case, it is hunting with a bow.