Yeah there are dedicated servers out, from what I've heard it wasn't hard extracting the proper code from the game - since IW are lazy whores who still use the CoD4 engine and never bothered to take the dedicated servers out. If you ask me, I say that they were asking for this to happen.
And yeah, R6v2 server would be nice - assuming I have easy control over it, lol. Otherwise I'll just make a listen server, works fine, especially for LANs.