As a melee weapon enthusiast, it's disconcerting to see many argue against Gun blades and their practicality though they certainly existed through out the ages. Mind you they were never wide spread in the era of their time of inclusion, this was mostly due to limitations of material availability and quality constancy. In a world with magic crystal mediums, great swords the size of people, invisible shields and books as weapons... Surely we can include a Garlean Gun Sword into our armaments.