This download contains 2 folders: "No hellhour" only removes the hell hour which is the event that spawns a lot of zombies at certain hours. Hellhour can be buggy. Random blowouts will still happen. "No hellhour and no blowouts" removes them both as they both can be buggy. Install: Open the folder on the one you wish to install, extra the gamedata to the main SoC directory and overwrite all when asked.