The drop attack gives the player the ability to fall from a high altitude and insta-kill an infected or human, by landing on it and crushing its head or piercing its chest. This ability can break the player's fall to an extent. It requires a one-handed weapon or a sword to function.
It is activated by holding down the attack button whilst falling downwards towards an enemy. Holding the attack button with an enemy below you will physically pull Crane towards the center of the enemy akin to an auto-aim of sorts.