"halt all regulatory activities, stop all promulgations, etc, pending review?"
No and none of the other candidates in ANY party would either. He will however halt many without even needing to review them and many more pending review.
"fire all Democrats in appointed positions?" Again no and neither would any other candidate from any other party. Will he fire a whole lot of them very likely. Will he fire those who are actually doing their job and not playing politics no and neither should he.
"use Executive Orders to Affirmatively STOP Obama's EO's?" Yes, he will
"pardon any soldiers?" I would say very likely
"unjigger grants and funding programs, so that those which are not cut include Catholic and Protestant institutions"