3) Army Constitution is totally independent document. It provide chief with powers to take any step for the sake of nation. Including overthrowing political government or Passing Emergency Laws or Change in the Constitution of Nation. Chief powers can't be challenge in court or in Parliament, orders authorized by Chief can only be repeal by Army Chief.
As I said before, there is no such thing called the Army Constitution. I have spent enough time in law school so I know what I'm talking about. Amy does not need any constitution for coups. Coups are ALWAYS illegal under any constitution, all army chiefs involved in coups are traitors under article 6th of the constitution & deserve to be hanged.