Doing Pavlov Zombies on Gem Server today at 18:00 UTC, which is in about 45 minutes I think?

Maps are
https://steamcommunity.com/sharedfiles/filedetails/?id=1993136772&searchtext=zombies
and
https://steamcommunity.com/sharedfiles/filedetails/?id=1931739042&searchtext=zombies

subscribe to them beforehand, so you are ready to play straight away, and don't need to wait for them to download.

Whitelist yourself at
[spoiler]sparkleyserver.top[/spoiler]
to gain access.