Needs to contain gamemode.txt and have itself listed as an Addon to boot.
GameMode_Example needs to have
ADDON GameMode_Example
in its list of addons so it executes server.cs.
Am i rite guyz
EDIT: Should have read that again. However, thats still how you execute a GameMode's server.cs... if you are booting it straight from the Start Server menu. Never gonna try to help someone with their coding again..