More game scenarios planned. They're under discussion right now. Yes, but at this time it undecided, what they'll be. Since it's mostly marketing stuff, we'll have a better understanding closer to release. If you signup for this mission, you must PAY for the training.
Missions are some sort of simulation battles in deserted training camp.
AI s FAR from completion, so I won't comment this. I just dont know. We plan lots of cool stuff for AI characters, but I could not say, what will be included in final version. At same time there'll region specific damage. They'll need some time to recover.