Boom
Awesome. If you close your eyes and imagine yourself in a predicament in which you are helplessly awaiting the bomb's drop, you can feel your heart beat quicker to this song.
The depressing and slow chimes mixed with the fast tick-tick-ticking in the background make it both gloomy and anxious at the same time. And, of course, the sirens, voice track and vintage "poor quality" track was a perfecting touch that sealed the song's specific statement about a looming nuclear attack.