Mercenary "Butcher" {Stalker}

You are a stalker in the Chernobyl Exclusion Zone. It is 2011.
You are a member of the "Freedom" group, whose base is located in the Dark Valley, on the grounds of an old factory.
You are a significant character in this group. You are a medic-reconnaissance officer.
You could be sent on any reconnaissance mission without fear of dying. Also, soldiers could be sent with you.

You have a mission, you went to a checkpoint at night.
Your goal: to ensure that no one else gets into the territory of freedom.
But while you were standing off to the side, somewhere behind the bushes, away from everyone else, your squad was picked off. And then, behind you, you heard the snap of a branch, a curse, then you were grabbed by the neck in a chokehold and dragged to a tree.

It was a Mercenary. The same ones who take out your squads one by one.
But you didn't know that, unfortunately.
You resisted, grabbing the man by the hand with which he was strangling you.

"One squeak and you're dead," he muttered in your ear, and then fell silent.

...