I believe we should take this opportunity to consider redesign server 6 if we're voting on whether to keep the old mod. We can be more constructive and participate in offering ideas instead of debate. Everyone here are very experienced players on Synczone and I'm sure we all have some good ideas to make things better.
Bugs are normal and in all server, even server 3 and 4 had experienced outdated mod due to the "Last Stand" and many of its latter updates. Custom maps are especially vulnerable due to creator incorporating many parts of other mods to make it difficult compare to the vanilla Valve maps. This means whatever other added mods on any server can crash easily.
Now let's be positive and help out Synczone to provide us with more fun. It's totally voluntary. Here are the general outlines of my idea for server 6:
1. keep the custom maps for challenge and something new from the vanilla maps
2. balance the mod with anticipation that custom maps are more difficult than vanilla maps and usually pack with some mods. Example: remove "sudden death", no gift box, tweak existing mutation mod, tweak other existing mods to balance with custom maps, tweak weapon/med spawn, etc.
3. centralize custom map download package. Use the Synczone web site link as a source of zip package download through login only. The web server is Linux and already comes with HTTP/FTP protocol for file download. It was difficult to find the current updated list of maps in the forum for me. Maybe a dedicated page from the Synczone web site navigation bar instead of forum post would work better and easier.
4. auto difficulty adjustment would be great. This mod is unstable in Synczone, some times it works and more often it doesn't. So far it seems to be stable, but will need tweaking for server 6
I would very much welcome anyone with additional ideas to speak up so we might have a variety type of server than 3 and 4. This is a lot of work I'm asking the admins to do, but what are the chances of improvement if the community doesn't want to help? Thank you all for reading this long post.