Updating the thread to announce new maps just added to the main London combo server today: (London2 & Atlanta servers to follow in another day or so.)
Thanks to the_cowboy for recommending CTF-Ogre and to Ooper for mentioning CTF-Niven_Caos. Thanks to Zim for modifying and sending over the 2on2-Joust_Double map. Thanks to shaihulud for the CTF-TrippleH map. Finally, thanks to X-Cellerator for all the BoM maps and for taking care of the special request to add low grav to a few of them to make them playable on normal gravity servers.