Be sure to change the conflicting controls and select the Zombiecraft resource pack at startup.
Maps from: Minecraftforum.net
Mod From: Coros
This was made to fix some of the issues with RogerThatGaming's port of Zombiecraft 3 and to add some more maps, per user request. For those who want to create a server for you and some friends to play on like I have see supertiger's awesome tutorial here.
This was made as a test many years ago. Though this modpack is not receiving regular updates you may still report bugs at my website, which I receive immediately, using disqus or here on the site, on the off chance I check back some day.