We've received numerous e-mails about the creation of a level for it. This is something we ourselves haven't done before, but hereby I'm granting you all permission to create similar environments and make an even more intense and amazing level out of it! Up for a challenge? Do it!
Those are all very good points! The idea of creating a map actually came from people who played Team Fortress 2 and said they would love to play it as a map. Personally I didn't really think it through, neither am I an experienced level designer.
I guess it could be played as an unsymmetrical capture the flag map where one side is the higher placed canyon city "Eastwood Junction" and the other side ends with a lower placed dam. In-between I guess you could have the tunnel, where you could go through, over the tunnel through the canyon or go alongside it. Where you could go from one another somewhere in-between.
What I would personally love is to have some of the trippy effect in the scene (don't know to what extent it's possible), but things like a twisted road or some kind of squished effect on objects might be cool. I don't know if it's possible to have driving cars. If not, it's best to have the cars crashed and damaged as if the movie had just recently happened.
Since I'm not an experienced level designer it's hard for me to know how to describe a good setup for the scene. It's more a request from e-mails we've gotten so far and I just wanted to throw it into map creation scene. I would love if someone was able to create a layout for it or even create the map in the end. Furthermore if you have any questions feel free to ask.