The Vault:Fallout 4 character project/generic NPC sample

Diamond City Security refers to several guards who inhabit Diamond City in 2287.

Background
These dedicated security forces stand guard on the Wall and patrol Diamond City within and without, to ensure that nothing threatens it. They use repurposed baseball gear, reinforced with armor for protection, and pipe weapons, due to their ease of use, manufacture, and maintenance.

Appearances
Diamond City Security appears only in Fallout 4.