We've been asking the same questions for months about Charlotte!!! We have not received a legit answer yet!
Roughnecks Here is where you request it: forums.bigsoccer.com/threads/can-we-get-a-tulsa-roughnecks-fc-thread-added-to-the-usl-expansion-forum.2001128/ And apparently there hasn't been enough interest. The general rule is at least 10 regular posters show interest. 2-3 posters saying yes 3 times each doesn't count. I would create it for you for completeness sake if I could, but I do not have appropriate authority. If your interested, post in that thread and tell your friends.
Your almost there, I count about 8 posters, although several are not Charlotte posters but "I'll post anywhere" people. http://forums.bigsoccer.com/threads/charlotte-independance-subforum-in-usl.2016813/ Get a few more and I'll start pestering DK/Super Admins.