So hilarious to me that I can use anything as a battle map by pretending it's something else, or like.
Look, I can make a whole world with continents shaped like the logos of Adidas, Puma and Nike, and by limiting the maps to just *regional* ones, as ain't nobody going to have to travel the whole planet in a TTRPGS campaign, no one will know.
I. Just, can take TF2 maps layouts and use them for battle missions. Literally, "protect the castle" and it's Dustbowl, "storm the secret base" and it's Gorge. I could steal forts from the Mad Max game, missions from For Honor, plots from iunno - The Boy and the Darkness. Superpower attacks from Warriors of the Universe mobile game. Character origins from Mortal Kombat.
I can yoink names of places from obscure irl places and no one will call me out for it. Off the top of your head, spot the real toponym: Derenk, Farberwell, Jikanmura.
Creative freedom is maddening, there's a reason why I moniker myself @thecrazyworldbuilder lmao.