Unlock the Armory

Unlock the Armory is an unmarked quest in Fallout.

Walkthrough
With 6 Intelligence and a good Speech skill, go to the armory on level three of Vault 13 (the locked door with the red light). Once there, speak to the Vault 13 security officer. Mention requiring more ammunition, then ask who has access. Then select the options "it sounds like only the people who need it have access" and "have need".

With a succesful speech check, the officer will unlock the security door, giving access to the armory.

Reward
Inside the armory:
 * 10mm pistol
 * x96 10mm JHP
 * Shotgun
 * x40 12 gauge shotgun shell
 * x4 knive