The Cowboyachievement/trophy, in similar fashion to Old School and Air Gunner, requires the player to kill 30 enemies in Metro 2033, and 100 in Metro 2033 Redux, both with revolvers. The counter includes both mutants and hostile humans. This can be done at any time throughout the game and the player can use any variation of the revolver. This achievement is easiest to earn on Ranger Mode Easy, as one shot to the chest will kill most enemies.
