Even in the TWC Mission Server you can also be up against other humans but also the AI 109s' as well as the 110s' can really fly, the guy who runs TWC had spent thousands of hours programming the servers and AI aircraft which are deadly!!I thoroughly recommend this program which is definitely not an easy one to master. There are real pilots who measure their time on CLoD in the hundreds of hours. One person has over a thousand hours!
Being a member of the TWC Crew they come from all across the globe, USA, Canada, Australia, France, Germany, UK plus many more.
All of them are fantastic and willing to help. To be truthful, I have hardly flown FSX since joining TWC and now doubt very much that I will buy any more a/c or add-ons for that matter.
Regards
Nigel