1. AI is shit with stealth weapons, though if you want something like that try the tact ops mod.
2. I have tried to make this for the tact ops mod, sadly the air calls do not have the ability to do angled fire, there for anything not explosives is pointless.
3. ok idea, but unlikely.
4.
http://runningwithrifles.gamepedia.com/Squad_control5. Think thoughs are planned though after 1.0 no clue though have to ask the devs.
6. has been suggested many times, and is needed.
7. read
viewtopic.php?f=6&t=1190#p7017