I have been messing around and was able to get the headless client working in Arma 2 a few weeks ago on my home setup. I gifted a copy of Arma 2 CO to the Veterans-Gaming Steam account and was able to download and install the client onto the Hetzner server last weekend. I'm going to try and get some testing going.. I have a mission ready that supports HC just need some warm bodies. I've configured the port 2312 server (runs ACE insurgency ATM) and it can be switched over for testing quickly. I'll post up in the chatbox if / when it happens. The only caveat is that you must be running the beta version of Combined Operations. In Six-Updater this is easy to do - hit the beta checkbox and download the files. If you are sitting there like WTF is the headless client? Sounds like my last girlfriend... The headless client is a copy of Arma running in console (like the dedi servers do) that can connect to a supported server and handle all the AI processing. This means much better server FPS as the server is only handling server stuff like positions, running scripts, etc., leaving all the 'work' of handling AI to another process. The end result should be better server performance and smarter AI, which is what we need for joint operations with 40+ players. ATM missions must be made to support the HC so we can't just throw any old mission up there !senile Mods: @ACE; @ACEX; @ACEX_RU; @ACEX_USNavy; @CBA_CO; @st_interact; @sthud; @tpwcas; expansion/beta 5.9.23.13 port 2312