The NVA couldn't catch us in their own mountains so I'm not too worried about US troops finding us in ours...the White Mountains of Arizona. Sure they'd have their best combat Vets but those Vets served in the flat deserts of Iraq and the mostly treeless mountains in Afghanistan. They've never gone against anybody like us Viet Vets in forest cover...Sure, we are getting long in the tooth but we're still the best guerilla force on the planet. "suicide by cop"? don't bet on it.
Dream on cowboy. While you are 100% correct about guerilla warfare being very effective, it also requires a supply chain; either "We, the People" or an outside force. In Viet Nam, you were supplied by the best, most industrious nation in the world. The VC had support from the Democratic Republic of Vietnam, often down the Ho Chi Minh trail through Laos and Cambodia. How will you be supplied in your lone stand against "We, the People"?
FWIW, in such an event, I think the US military would be strongly split with most refusing to fight against fellow Americans. That's given you are just a bunch of ******* nutjobs trying to blow up a Somali apartment complex and trying to murder innocent men, women and children. Most Americans don't condone ******* child murderers.