Dishonored 2 – Heartbeat Reaper Trophy / Achievement Guide

Dishonored 2 – Heartbeat Reaper Trophy / Achievement Guide – Eliminated 6 enemies in less than 1.5 seconds [Bronze / 30G]

Mission 2 – Edge of the World
Shortly after getting past the Wall of Light you will come to Addermire Station, a huge train station with several enemies and another Wall of Light inside. Behind the registration is an armory. Here you can find several grenades. Pick them up and alert all the enemies around the building. Lure them to the armory and then throw one of the grenades when they are standing close together in the room. The grenades have a huge blast radius and will instant-kill all enemies. You can easily get 10+ kills here if you lure enough enemies.

This is just before entering the carriage. If you enter the carriage you have gone too far and it will end the mission.