Chargers appear randomly during rounds, and make a sustaining growl, which indicates their presence. They can be easily noticed by the red glow coming from their eyes and chest. In addition, these zombies also bleed a bright pinkish-red fluid.
Chargers are more aggressive than their standard cousins. They run faster and tend more regularly to use their exoskeleton to jump towards the player and attack them. At earlier rounds, where the player is getting up to speed, Chargers can be quite dangerous. They also have slightly more health than regular zombies, taking several additional shots from the Atlas 45 to kill. Should the player's health be at a low level, they can easily lunge and hit them. In later rounds, since all zombies are running, there is no need to prioritize Chargers over others.