Being in third person allows u to pan the camera, wait at corners crouched to stay mostly off radar, pan the camera and wait for them to come around then hit them. I usually will swing a couple times if they also have a sword just in case they happen to block. If I use a good machine gun I can squeeze anywhere from 1 to 7 kills, stretching my ammo until the next heavy drop. Swords I can squeeze out 3-5 kills before someone gets me. Just be patient and CROUCH/PAN.