Although I like the intent of the video, I would not go toe to toe on the battle field
with the regular modern military.
On a home to home basis if I thought it was a trip to a camp or to a mass
grave I'd kill every enemy be they the police or soldiers, that I could before they killed me.
They are going to kill me anyway so fight to the death.
If it is more of an occupation than a kinetic war, then guerrilla tactics come into play.
Set their homes on fire and kill everyone that runs out.
Shoot one in the back after they have passed by. Bomb their homes and families.
Disrupt their supply lines. Attack and then fade away.
Look up 4GW.
BTW an AK is surprising easy to disassemble. and reassemble, while blindfolded
but why would you want to? If one quits working, it is probably broken
beyond what a cleaning will fix.