Seems like
AAarghh...
I took a look at the map.. I will try to contact the Guy...
Its not a map, just a single Room.
And he used an Iron Maiden Levelshot...
I will try to contact him
Make your own shortcut (e.g. an3) - continue with gametype (e.g. dm) and last give the map number (number od your maps od that gametype, should increase each new map for that gt - 1 for first map). That's unique map filename.