All through history we have seen pieces of governments break off and join the people in various amounts during revolutions, nobody knows what the numbers would be, but there would be some numbers like all revolutions. I don't know how much of a difference it would make don't think anyone does.
But you can bet there would be intense fighting in some States. I bet any police and military that broke off, including ex military and police could cause a lot of damage providing people with some smart alternatives as opposed to doing something dumb, like turn your house into the Alamo. With a little leadership, and some calm heads, they could at least make it worth your while to die, which is going to happen anyway if it gets that bad. Let's face it, when the Feds decide to do something they are already looking at people like us that have bought hundreds of firearms over the years, they know who we are right now. If you decide to just give up and hand things over, they will still come into our homes and ransack the place knowing who we are and figuring we would not give them all up(they would be correct)...you'd probably get killed in that process. I still think the government is smart enough to disarm us in other ways, it's pretty chancy calling for all out war on gun owners, they might just think there is a chance they would lose that one(and they might lose in a State or two). I bet they find another way, and do it a lot slower. I'm just guessing though...guess we won't know until something happpens. Let's hope the voting booth works instead.