I'm not sure why an admin mod is required.
Mani is one of the simplest admin mods I've seen - a simple GUI that allows quick access to admin commands, rather than having to type through RCon. However, at present, no add-ons are on the server as we try and find a cause for server hangs.
Stop using handicapped custom maps and Just use Normal maps like 2fort.
It makes everything easier.
We have 4 custom maps on the server, all stay true to the style of the game, rather than weird custom stuff (like PacMan).
The server is having some major issues and continues to crash after a short amount of time. We're looking into the issue to determine if it is due to the Add-Ons that are on the server.
The server is being restarted with no add-ons and only the four custom maps to determine what is causing server hang-ups.