while im not familiar with like heavy metal as a genre specifically this fic just Gets It that's what it's like being a music fan. music speaking to you. also very good reaper76 old man yaoi they are in their 60s

The soldier was quiet for a moment. “Who were you, in Overwatch?” he finally asked. “Who were you that the fall took everything from you and you’ve joined the enemy to bring them down from the inside? Overwatch must have been important to you.”
Reaper looked away. “Doesn’t matter. The person I was is dead. I’m just Reaper now.” He paused. “What about you?” he asked, looking at the soldier again. “What’s your name?”
The soldier shrugged uncomfortably. “Doesn’t matter,” he echoed Reaper’s words back to him. “Like I said, I’m just a soldier.”
“So we’re a couple of cagey bastards, got it,” Reaper huffed.
The soldier who can't remember who he is and the double agent mercenary Reaper team up to take down Talon, each seeking revenge for something they lost. But as the soldier looks for answers, he learns about the sins of Overwatch and its Strike Commander, Jack Morrison, a man whose apparent greed, corruption, and incompetence led to Talon exacting its chokehold on the world. Even as the soldier begins questioning the point of their quest, he and Reaper find themselves inexplicably drawn to one another.