I got to skim through the TF strategy guide at my local walmart this weekend. Damn guide wants $24.99 for it...rip off in my opinion, should be $15 at most.
As I skimmed through it, didn't have time to go page by page, I was trying to find all the game modes defined but couldn't. I did manage to see the over views of all the maps with the CTF modes and that's going to be a lot of fun. There's going to be some crazy wall-running routes you can take as a flag carrier in CTF.
Can't wait!
The interwebz is enough guide for me.