I really think that if people are interested in making Maps without Scenarios attached, they're more likely to be competitive maps (there's really no way to playtest non-competitive maps without scenarios attached). The best place for work like that is the Best of Marvel maps thread or the Best of Valhalla maps thread, depending on what people are working on.
Maps are cool and all, but unless they're associated with a scenario, I don't really feel that's the domain of this project.
Ah, and you don't have a badge, do you? Oops! Need to fix that right away.
Go to the User CP screen and then the Group Membership link on the left. Then go to the Comics Customs Creators Guild and click "join group." Let me know you've done so after you do it, so I can go and make sure you're approved. Then, bam, you should have a badge!