These differ from the retail version of Halo for the PC by not requiring:
User can now specify their data folder directories using -path.It's now possible to restart the current game without requiring the server to map cycle.Teams are now persisted for the next game when map cycling occurs.Optimized map loading functionality, significantly reducing the time to load large map cycling configuration files.Enhanced functionality to reduce online team killing and facilitate the banning of users.With the v1.03 update, the following new features / bug fixes are introduced: Controlling Team Killing and Banning undesirable players.NOTE: HALO DEDICATED SERVER IS NOT SUPPORTED BY MICROSOFT CUSTOMER SUPPORT. This document is written assuming the reader is familiar with running dedicated game servers, as well as having advanced computer knowledge. The Halo Dedicated Server is definitely an advanced feature, not designed for the casual user.
This file contains information to help you setup, run and troubleshoot the Halo Dedicated Server. Welcome to Halo for the PC Dedicated Server! Microsoft Halo PC Dedicated Server Readme File December 2003, v1.03 Microsoft Halo PC Dedicated Server Readme File