Much changed in the base besides the defenses. The probe greatly expanded its manufacturing capacity, digging out vast spaces under the ground to make into new workshops. Olivia inspected each new manufacturing area, mostly because she was often bored and didn't have anything better to do. A growing warehouse started to fill with heavy machinery, modular building sections, and more manufacturing tools to be used in the new city. Oliva checked everything the Forerunner made, though the labor was mostly pointless. It wasn't as though she even understood most of what it did.