I made this map in about 3 hours but it was worth it. it took sometime getting the difficulty right but its most likely done. i will probably keep updating this with more detail but for now what you have to do is hit the set up game button. wait a while so you can get your items. Then hit the start game button (make sure you are on anything but peaceful). It doesn't matter what difficulty you're on because the spawning is all automated. I haven't gotten the endgame button working yet but i can do that once this is done uploading all it takes is one command. but the barricades will keep breaking because the "zombies are breaking them." So get your points and keep fixing them. i also have juggernog which gives you speed II and strength VI so ya i little op but h well. Also it takes points to buy everything (It can have negative points so you can technically cheat but i cant fix that.) Oh and if you spawn out side of the map you will most likely be in creative so just fly up on the roof and get in then hit the set up game button.