You will need to craft some particular tactical bombs. You can buy them from a black market dealer, or you can make your own:

Craft a bomb using the following: Any - Any - Caltrops

Next, it's just a matter of locating some guards and leading them to some scaffolding. Deploy your bomb once the guards are standing beside one and they'll hop around grabbing their feet. Bring down the scaffold on top of them, by either using your hookblade and pulling it down with , or you can grab a guard and throw them at the scaffold, although only guards who are killed by it while stunned will count, so the one you throw won't. For an easier time in luring them near scaffolds, consider using cherry bombs while remaining silent. Once you kill a total of 5 from repeating this process you will get the trophy.

δεν ειναι δυσκολο. φτιαξε την βομβδα, μαζεψε τους κοντα στη σκαλωσια, χρησιμοποιησε την βομβα κ την ωρα που τρεχεις για να φυγεις (παντα να εισαι διπλα στη σκαλωσια) πατα τον κυκλο κ θα πιασει τη σκαλωσια.