To unlock this achievement you have to be playing Shadow Plague virus.
Evolve Therianthropy on the Vampire page. Now you will be able to see a bat icon on the left of the map, select the bat icon by clicking the left analogue stick, then move the curser over your vampire. Press RT and it will bring a purple circle, now select RT anywhere in this circle and your vampire will transform into a bat and will now travel to the location selected.