I can imagine that this might not be an immediate priority, so the suggestion is more for coming DLC, but
I really feel that PP could at some point do with some more map variety.
Different terrains such as arctic or dessert, some different urban environments (is the world really one big scrapyard?), and one or two rural settings would really help to mix things up. I’d love to see how the ballistics systems could be used in the middle of a forest for instance.