We have northern part of California featuring san francisco. We could have another map dedicated to the main city. Downtown Los Angeles featuring other suburbs, commercial areas, and valleys surrounding the map. This would make sense, but will take a ton of time. Im around the area, its very expansive. So maybe it could be scaled down, while still having that same feel or feel as close IRL.
I mean, the Los Injurus map by bob.blunderton exists but it's not too kind to potato PCs, mine runs it fine though but I've got a dedicated machine for playing Beam so idk
As someone who lives here, I agree. You are right about the expansive thing though, trying to model purely based on real life would take forever, and if ever completed, would probably be hard to run.