Why isn't Guns of World War 2 a category on Wiki answers?

Answer 1

Between the various firearms, militaria, military equipment, and World War II categories, it should be more than sufficient to cover what you're looking for. While we try to categorize in a reasonable manner, there does come a point where it gets too excessive.. after such a category were added, then it would open up the doors to demands for "Guns of WWI", "Guns of the American Civil War", "Guns of the Vietnam War", etc - again, topics which are more than covered under categories which already are in existence.