Unreal Tournament's Facing Worlds map is not only a classic of the series, but a classic for shooters in general, and an unknown modder has recreated the map for Valve's shooter Counter-Strike: Global Offensive.
The mod was then polished by a user called Jeisen, who then posted it on Steam Workshop, where you can now download the 201 MB needed to play it. What other classic maps would you like to see for CS:GO?
Thanks, Kotaku.