But I just played the Pinger, and I gotta say, this wins. The sound it emits is terrifying, and you can hear it stomp around while you cower behind cover. It ate 4 JAW missiles, 2 C4's, a few 60mm grenades, and some fire assault rifle fire from everyone, before hitting the floor.
I died 5 times trying to defeat it. Most cases in which I was hiding behind a car, before it decided to 'ping' and make it crush me up against a wall.
Agree?