How to Acquire
To unlock this achievement, Corvo Attano or Emily Kaldwin must perform drop assassinations on ten enemies. This can be done in combat using the double-jump provided by the Agility supernatural ability, or by reaching a high place (Blink and Far Reach can help with this) and jumping to attack an enemy. For this achievement, drop assassinations can be either lethal or non lethal. They do not have to be performed in the same mission or playthrough.