Thanks for the reply.
Using some script at the 1C Company forum created by 41sqn_Banks, who seemed to think he had the problem solved with a workaround script, I worked hard to get it to work.
No joy. His sample mission with the script in it didn't work.
Unless someone can suggest a solution or another forum to check, I will have to conclude that it can't be done, at least not by me. My impression that lots of people exhausted themselves trying to solve this problem.
Is there anyone who can actually host a coop mission on Steam?
it can be done, just dont expect it to look and work the same way as the old COOP in il2-1946. luthier already said that shortly after the CoD release and it is possible, but granted it is not as user friendly and simple (yet).
have a look here for example and read through the mid and end parts of the thread, several posters give specific information on how it is being done by some http://forum.1cpublishing.eu/showthread.php?t=32115&highlight=run+coop+session
the good news is, and i would like it to be a more simple method for CoD to, is that the ATAG mod team is looking at improving it and provide a better method (but still wont be the old il2 coop system because that had many other limitations)