“Oh, and a FOB is some sort of Enclave technology that let's you enter a door electronically. You'd probably find one of them at one of their bases or some such place.”— A. Ron Meyers
You need to use a FOB to access the navigation computer is a quest in Fallout 2.
The Tanker FOB located at the Enclave base of Navarro is in the commander's office.
The player character needs to get into the commander's office any way they can, which leaves four options:
- Use force of attack to gain entry
- Lie to the guard and simply walk in posing as the cleaning crew
- Bluff as the duty officer requires it
Afterward, head to the tanker in San Francisco. Go to the lower level of the tanker, and use it to open the door. This will allow The navigation computer needs the NavComp part to work to continue.