The Bunker is a map I designed today. Basically you can either live underground or on the surface with as many players as your computer can handle. There is a chest at spawn (when you download the map , not spawn of world)
full of everything you need but if you are playing with tons of players you may need to spawn lots of items in.
post scores on the forum:
www.planetminecraft.com/forums/post1893169.html?hilit=the%20bunker#p1893169