Left 4 Dead

Left 4 Dead is a video game series which served as the inspiration for Vermintude and Darktide, along with Space Marine: Deathwing. In it, you control one of 4 characters, either controlled by A.I. or other players, and try to escape through a Zombie Apocalypse campaign from one end of a map to another. The zombies are of the Infected variety, still technically alive, and have various Mutant subspecies called "Special Infected".

/tg/ relevance

Not only have multiple Warhammer 40,000 games been made copying the Left 4 Dead formula, but a few homebrews here on 1d4chan feature Left 4 Dead Infected as enemies, like

Characters

Francis Louis Zoey Bill Ellis Rochelle Nick Coach MY-BUDDY-KEITH

Zombie Types

Common Infected Uncommon Infected Smoker Boomer Hunter Tank Witch Spitter Jockey Charger