Download the Menu Backgrounds mod (if you dont have it already)
place it in the mods folder (REQ BLT)
Download this one and put it inside the PAYDAY 2\mods\Menu Backgrounds\Assets (dont forget to extract it)
once placed inside there it should work
If any bugs or anything thats out of place please tell me
also if you have any better ideas for locations or anythings else don't hesitate to tell me :)