I keep reminding the devs about 1946-style coops on sukhoi.ru. In the meantime you can use naryv's script and modify it to meet all the needs and features you mentioned
http://forum.1cpublishing.eu/showthr...537#post354537
Win/loss condition depends on mission maker how he or she programs it. Several people are working on online statistics for CloD. I think it will meet all mentioned requirements when combined with the above script.