Interesting take, written by a police officer who considers himself a civilian:
"According to Merriam-Webster a civilian is "a person who is not a member of the military or of a police or firefighting force". The Oxford Dictionary has a similar definition. However it starts to get more blurred when you refer to international law".
https://www.quora.com/Are-police-officers-civilians
doesn't it imply that police and FFs are the "occupying force"? Internal police and military are not equal, totally different animals.
Also, 2a is about parity between citizens and military, while the push for guncontrol essentially makes citizens into subjects who's ability to defend themselves must be exceeded by the firepower of their own military and police.