6th Street Makeshift Ballistic Vest
Undercover work can be the most dangerous and soul destroying job a cop can have. The added tension, risk and overall facade you'll need to keep up at all times can be extremely tiresome.
And then, suddenly, No Russian. What the fuck do you do? So you covertly call in backup. But by the time they arrive it's all but settled down. You take out the remaining gang with the help of colleagues but it's a bloodbath. Officers down. 999 goes out on the net. Trauma Team incoming.
It's not like the movies. It's fucking terrible. And you'll never quite be the same again.