2019's Call of Duty: Modern Warfare made an interesting change to class customization called Gunsmith, allowing greater customization of weapons and attachments . While Gunsmith was completely new for attachments in Call of Duty , it was very reminiscent of the loadout customization system introduced in Battlefield 3 and expanded in subsequent entries. Integrating that much weapon customization was a first for the time, considering most Call of Duty games stopped at one attachment per gun unless...