Board Thread:Metal Gear Solid V/@comment-198.13.143.126-20140613030424/@comment-75.59.205.8-20150907091105

If you aren't aware, the name is a reference.

During WWII, Navajo Native Americans helped deliver messages in code speaking Navajo. Navajo is one of the few languages that no other in the world has many similarities too: thus making Navajo a perfect language to relay secretive information. The speakers would understand it naturally with little room for error in misinterpretation, while being next to impossible for enemies to decode.

They were called "code talkers."