We've all come to love and cherish Call of Duty's weapon blueprints, but often never got the attachments necessary to match our weapon's overall aesthetics and camos. Whenever we got the blueprint for our favorite weapon, the attachments on it were almost always replaced with the meta attachments, that pretty much ruined the intended look of the blueprint.
Either that, or the blueprint with the good attachments was for weapons that anyone barely used. Fortunately, this issue is fixed in Call of Duty: Modern Warfare 2. In addition to the improved Gunsmith 2.0, we now have a new feature called Weapon Vaults.
Weapon Vaults are dubbed as the "Ultimate Blueprint" or the "Super Blueprint" for your weapons. So what is the main difference between the regular blueprints and the new Weapon Vault blueprints? The original blueprints that we received in Modern Warfare (2019) all came with a standard set of attachments that matched the blueprint theme. However, as soon as you changed any one of the attachments, the whole look of your weapons was disrupted.