No need for the roundtimer fix, Richard added that into the official codebase in 3.1 so just grab the zip file that's for 3.1 and you should be right to go as below:
I would advise you to:
- Do a full backup of all your zombie related files first, especially all of your configs in addons/sourcemod/configs/zr and cfg/sourcemod/zombiereloaded
- Update to Z:R 3.1 using the files Richard provided
- Update to my fixes using the Z:R 3.1 zip in the first post
- Update your playerclasses.txt to include the new immunity values (Z:R will crash if you don't) and reupload it to your server
- Use the same downloads.txt you backed up
- Update the new config files from 3.1 with the backed up configuration files, always better to use the new config files IMO.
If you run into any problems let me know
