good spot to get this: On the Acropolis level, just after you come down the hill, some chickens to your right. Go up to the arch on the left, after the cut scene, just get seen by one of the bad guys then move back away from the arch back toward the crate near the tent
. wait a little bit and they will all bunch up there under the arch, around 5/6+ of them! BOOM!! go for it!! :)