Left 4 Dead 2

Left 4 Dead 2 is first-person shooter survival horror video game developed and published by Valve Corporation. It was released on November 17, 2009, on Xbox 360 and Microsoft Windows via Steam. It was later released for the macOS and GNU/Linux operating systems.

Charger

 * The Charger is an extremely strong, extraordinarily fast and aggressive creature; it is an attempt to defeat the player's tactics of grouping together in a corner and destroying the main game's aim of tension. At a glance, it appears to be an undeveloped Tank creature, due to the deformed face, massive Hulk-sized arm and a hump that makes the Charger appear bulky. However, there are some differences; the Charger is considerably faster than a Tank, although lacking it's sheer brutality and power. The Charger can also leap large distances and leave the player and/or their allies helpless. However, the Charger cannot sustain the same amount of damage as a Tank and are a lot more numerous. The Charger attacks by charging at the survivor with his large arm and smashing the survivor until the survivor is dead or the charger is dead.

Jockey
The Jockey is a small special infected that attacks survivor by jumping on their back and riding them. He can use his weight to lead the survivor to dangerous places like a cliff, witch or other infected. The Jockey seems to have a spinal disease, giving him his hunched appearance.