There is a large scene for the Tactical Ops mod for UT. A lot of us are on the Mac.
To block cheating in the game there is two different approaches. One based on scripting that checks the handling in the game and one external application that insures all files are unpatched and not modified and then communicate this with the server over a secure connection!
The last software is not available for the MacOS 9/X - at the moment it's only win32API driven.
I have talked to the developer and he need coding help from a Mac programmer to work from scratch and create a client software for the MacOS9/X.
If you feel that you could solve this and enable us on the Mac to be part of this - please contact SabrWolf, the developer!
http://to-protect.de/
[email protected]