Somebody would shoot you. Its hard to tell what you're shooting at up there so id probably shoot if I saw you up there taking shots down on the city.
Honestly, I never get up unless I actually have a clear shot on something then I instantly get down. That way I've never been killed on the hospital roof except from a hacker
Downloading a program, restarting your computer, and registering an account for the program. (Correct me if I'm wrong Herpa.)
Correct, I gave him the steps through skype