Speaking as an LEO in TN, if the administration in my department ever sends down the order to go out and begin confiscation of personally owned firearms I will immediately resign and turn in my issued equipment. I WILL NOT turn in my personally owned firearms. Whatever idiot LEO said he, “Can’t wait to break doors down and confiscate firearms!” must have a death wish.
The other option you have is to remain on the force, but refuse to follow that order. My take on the hazards of each option are:
Remain on force, refuse the order - You would be “marked” by higher authority, but could serve as an inspiration to other like-minded LEOs. The question would then be whether or not an ordinary citizen would notice the difference between two people in the same uniform, only one of whom understand the Constitution.
Resign - You would still be “marked” by higher authority, but would have greater freedom of movement.
Others will have different thoughts on the subject. Tough position to be in, but most true civil wars get tough for all concerned. During the American Civil War, my ancestors supported the Union, but lived in Missouri, a border state. They had to move to another county for their safety due to lawless men who masqueraded as southern sympathizers.
“Resigning in Place” is also an option. In such a situation, patriots will need assets inside of the enemy organizations.
Difficult and dangerous, but extremely useful.