Fisherman

Fisherman is an achievement in Metro Exodus that can be obtained in The Volga level.

Overview
This achievement can be obtained before exiting the flooded terminal during The Volga level by killing the Tsar Fish. This can be done by going to the control room and first attracting the fish, either by cutting one of the bodies down into the water, or ringing the bell, and then turning the rail. This will cause a large amount of debris to fall into the water and mortally injure the fish.