When people think Fallout they usually picture the image of the BOS or the Enclave, if someone who is casual to the franchise joins and doesn't see that, or groups such as the NCR in it, then it naturally creates confusion.
I get you but i mean like this
Instead of the generic "WESTERN TOWN CENTRE o' DA WAR IN DA desert"
You could have cool new shit like NCR in Yukon and British Columbia, where you got like proper frontier town with different threats like the local leafs
or further a ncr expedition into El Paso or New Mexico or some shit and you got your Mexicans and some such
anything but fucking Arizona and Nevada