Double Trouble

Double Trouble''' is an achievement in Deus Ex: The Fall.It is awarded for performing a double takedown on enemy NPCs, either lethally or non-lethally.

Strategies
The player must have the Quicksilver Reflex Booster augmentation in order to perform a double takedown. Enemies must be standing next to each other and it is essential that they do not see you before you execute the takedown.