here is the commands of the Mobseption seen here: http://www.planetminecraft.com/project/mobseption-apocalypse/

In my personal Experience, this has been some of the most fun i have had in minecraft in a while.  Being my first command block expereince all packed into this i hope it is a great load of fun for you too

Below is a link to the file with the Mobseption Commands
https://www.dropbox.com/s/fucarjxozdf60jm/Command%20Blocks.txt?dl=0