Western urban SHTF social volatility index has moved significantly. Increase your awareness of your urban environment. Switch on! Think.
For example, the centers of modern large roundabout could dbl duty as firebases to control 4 roads! Bridges can quickly be converted to very effective gates.
Be the grey man in a grey town. Let bigger / louder urban areas attract airborne control measures. And get out of dodge. Then, think like an outlaw and adapt to that environment. Always… think.