Hello CubeCraft, as you can see below the redstone machine in the map "Classic PvP Gamemode" that opens a entrance into a room is broken.
http://imgur.com/b6QI6Hi
http://imgur.com/YoakJ10
http://imgur.com/61ExXFW
http://imgur.com/b6QI6Hi
http://imgur.com/YoakJ10
http://imgur.com/61ExXFW