Metro: Last Light Redux

Luckily, this achievement may end up unlocking without much effort on your part. During the “Echoes” level, Pavel will command you to check a service room for supplies. Here, you will find some ammunition and Duplet shotgun. After picking it up, you will kill a nasty Watchman through a short cinematic.

After returning to Pavel, he will climb the stairs and command you to stay put. Adhere to this warning and crouch right behind him. A massive horde of Watchmen will be passing by just ahead of the stairs and once they pass - since they did not notice you - the achievement will unlock right away.

Luckily, this achievement may end up unlocking without much effort on your part. During the “Echoes” level, Pavel will command you to check a service room for supplies. Here, you will find some ammunition and Duplet shotgun. After picking it up, you will kill a nasty Watchman through a short cinematic.

After returning to Pavel, he will climb the stairs and command you to stay put. Adhere to this warning and crouch right behind him. A massive horde of Watchmen will be passing by just ahead of the stairs and once they pass - since they did not notice you - the achievement will unlock right away.