Currently the Specialist mod (ver 2000d) is available for download. This version is a full release!
Download it from:
FilePlanet here.
Mirror here.
Another mirror here.

Instructions for installation:
  1. UNZIP: Unzip the contents of the ZIP file you downloaded into your Dynamix/Tribes directory (note that the ZIP file specifies subdirectories).
  2. READ: Read the readmeSpecialist.txt file OR DIE.
  3. CUSTOMIZE: Modify the config/Specialist.cs and the config/serverConfigSpecialist.cs files as desired.
  4. SHORTCUTS: Use the included shortcuts or:
    --To run a dedicated server, create a shortcut or type the following at the command line: <YourDrive>:\Dynamix\Tribes\InfiniteSpawn.exe *28001tribes -mod Specialist +exec serverConfigSpecialist -dedicated
     --To run a personal server, create a shortcut or type the following at the command line: <YourDrive>:\Dynamix\Tribes\Tribes.exe -mod Specialist +exec serverConfigSpecialist
For more information see the Server Corps.
Copyright 2000 Prototype i, LLC. All rights reserved.
Starsiege Tribes is a trademark of Dynamix, a Sierra company.