Every weapon must have a tag that shows that the weapon is in-game. When you purchase a weapon from a blacksmith or from Logistics with your Production Points, you will be buying this tag to place on your own weapon. Some magically enchanted weapons may have only a physrep number; these must be identified before use. Some items can be strengthened to withstand Shatter effects. When you have this done to your weapon, you will be given a specific tag which must be placed on your weapon.