For co_kickball to work properly, the server running the map must have AMXModX 1.70 or higher
installed. The server must also be running the kickball plugin, which has been included in
source form in the plugin directory. You must compile the plugin with the AMXModX plugin
compiler, add the resulting plugin to your plugins directory and add it to plugins.ini

AMXModX can be downloaded from the number-7.com metamod plugins directory, or from:
www.amxmodx.org

Metamod or the more efficient Metamod-P is required to run AMXModX on the Half-Life Engine.

Metamod can be downloaded from the number-7.com plugins directory, or from:
http://metamod.org/

Metamod-P can be downloaded from the number-7.com plugins directory, or from:
http://metamod-p.sourceforge.net/