Nameplate

A Faceplate is a plastic or metal plate, cover, or bezel on the face (front) of a device or surface of an object.

The Diamond Dogs and various other Private Forces active during the 1980s utilized faceplates for their various bases, including the main operating base of the former.

Behind the scenes
Faceplates were a concept introduced in the Version 1.07 update for Metal Gear Solid V: The Phantom Pain, as a means of making the player's Mother Base a bit more distinct. It can be found on the iDroid's Mother Base menu under the Customization submenu. They can be purchased via Event Points, which are also introduced in the same update.

The following are available: