4 survivors, Left 4 Dead 2, zombie apocalypse, group pose, action stance, Ellis - baseball cap, tattooed arms, blue mechanic shirt, jeans, Rochelle - news reporter, pink T-shirt, black pants, Zoey - college student, red jacket, jeans, Francis - biker, vest with patches, tattoos, urban environment, abandoned city, graffiti walls, broken vehicles, dim streetlights, overcast sky, dynamic composition, mid-action, intense expressions, survival gear, shotguns, pistols, Molotov cocktails, pipe bombs, flashlight beams, teamwork, dramatic shadows, high contrast lighting, 3/4 view, detailed textures, gritty atmosphere.