I'm not entirely sure if this is a legal entry, because it's a modification to a level I previously created, but if you'll accept it, here it is.

Edit:
I just remembered that bragging is encouraged in this contest. This level is probably one of the coolest I've managed to create. It is one of the most unique forms of CTF I've ever seen, and from a technical aspect, the level is surprisingly complicated for such straight forward gameplay. I personally really want to duel on it for JDC next season at least once.