The red bandana is a piece of clothing in Fallout: The Frontier. Worn by Warhead. Frontier QA test room - in a mailbox named "All armor". Located in the room to the right, just around the corner.
Michael Berryman - Wikipedia
Main - Uneven Earth
Characters, Fallout: The Frontier Wiki
Fallout: The Frontier - Independent Fallout Wiki
Main - Uneven Earth
The Frontier, Fallout: The Frontier Wiki
Fallout: The Frontier, Fallout: The Frontier Wiki
Field Hand Outfit - Independent Fallout Wiki
Area 451 - Official TF2 Wiki
Steam Workshop::Explore Gmod
Vampire Gutter Rat - Gutter Cats Thugged Out
Red's Bandana - Independent Fallout Wiki