at the current status of CoD "classic IL2" style COOP online events are not possible......
and it were only these onlinewars that kept me online all the years with IL2 , from the first IOW and VEF on.
but if you want try to build and fly COOP missions with CoD , with its given limitations
, perhaps that topic helps
http://forum.1cpublishing.eu/showthread.php?t=21966