Does anyone know how to add a custom flag next your faction name?

I made a custom faction in Alive Obit and I have a patch for them to wear. But now I need a flag that goes next to the faction name. Does anyone know how to do this? It's not the flag on a flag pole. It's an image I need by faction name.

I have been looking on google and most people just refer to the flag pole. It's not what I am looking for.