This guide will let you know how to Create & Save Weapon blueprints in Warzone 2 & MW2.
First, you have to boot up your game and then you have to go to weapons. Then you have to select multiplayer loadout. Then you have to go to custom loadout and you will the blueprint of the gun in the bottom left box of the gun. Select the blueprint, then go to gunsmith from here you can put on your attachments. Also, you can make changes to your blueprint and then press the L2 button to save the custom mod by giving the name to the blueprint.
After that, go back to your primary slot, and then choose the gun whose custom blueprint you just have saved. Then you can see your custom blueprints which will be indicated above the armory as this is shown by a ranch sign. You can build custom blueprints for almost every type of gun.
