CTF_Well, anyone?

"The area near what was once the second-to-last control points have been rennovated to give another set of stairs to the upper floors of each team's home building, but other than that the structure of the map is largely unchanged. It's better suited to large numbers of players, since the action tends to be more spread out on CTF maps. As an extreme example, Valve's Robin Walker recalled having to defend his team's dropped intel underwater, in the moat outside the train yard."