Lots of games are being mashed up together these days by independent developers, such as Doomablo. Recently, I just found a site where a guy is working on Team Fortress 2 maps and he actually replicated the whole World of Warcraft arena map for Team Fortress 2.

The details of the map is amazing as you can see in the videos below. Markus Frank, the talented creator pretty much captures every aspect of the arena map in World of Warcraft. Also, you can download the map on his site and cool drawings of TF2.. Very cool..Keep up the good work!

Check out his site here.

and here is a another video showing the map in action on wegame