Enter the armory and gather all 6 varieties of weapons into your cart. Roll it outside the house and use explosives to set it over the vault door and blow it up. Enter the place and move the marked shelf. Keep on shooting at enemies right up until Marshall's sign, https://call-of-duty-black-ops-603468.snack-blog.com/33954809/the-definitive-guide-to-call-of-duty-black-ops-6-gameplay-walkthrough-campaign