I crouched behind the front passenger door. They definitely weren’t expecting us to have the firepower we were showing. AKs weren’t really my forte, but I got a few good shots in before I needed to reload. As I was slamming the cartridge in place, Marek let off his first shot.

The sound rocked my brain, my head rattling as my ears rang. It echoed so loudly in the tunnel that I wondered if we had displaced some of the concrete. Hearing him reload, I counted the seconds until he got another ...