Freeroam 1.3.4

This is a graphical interface for freeroam servers. Instead of having to memorize and enter console commands, players can click buttons and make selections from lists. Many features are available, from creating and customizing vehicles to changing gravity and weather. A map is also available for point-and-click teleporting.
Many features are also available via console commands. If the helpmanager resource is started, players can press F9 to view a list of these.

Server admins have many settings available in meta.xml. Among others you can disable any functionality you don't want your players to be able to use, and can also disable specific weapons and vehicles (the minigun and tank are disabled by default).