A vary large population of the military originates from the south, and I don't think they will be very anxious to fire upon their own families. I actually see them deserting, defecting, and bringing some of their high-tech war toys with them.
Anyone who thinks a Civil War would be the armed and skilled against the unarmed snowflakes is fooling themselves.
I have observed that more and more gun owners in my part of the country are getting out and learning to be quite proficient with their firearms and practice with them regularly. Individual and multi-gun competitions, combat rifle and pistol competitions, and long-range rifle competitions are becoming very popular. I made a comment to my wife (who herself is a concealed-carry instructor and multi-gun competitor) when we last attended a very large shooting competition: "So, this is what all the hunters and fishermen are now doing in the off-season."
Yes, there are a whole lot of hunters who are exercising our Second Amendment constitutional right to hunt and train for hunting, and we are interested in our ability to hit a deer-sized target at 600 yards. That is after all what the Second Amendment is for, and we are taking that right increasingly seriously in these stressful times. Hunting is likely to be our form of stress relief if the coup gets much more stressful.