Ooooo... I can't feel my fingers anymore once I finished this. It took me almost 1 week to get it done. So let make the introduction fast and simple.

L4D is an action game based primarily on zombie shooting. Storyline hovers around how the 4 main characters, Bill, Zoey, Louis and Francis fighting the Human Rabies infected, painless,fast moving and highly dangerous zombies.

If you don't know the game, try have fun by guessing who their names are:

Francis: the guy with mustache and beard. (there is overlapping of their characteristic)

Zoey: the only female character in the game, who's rumored to be a horror movie enthusiast.

Bill: The one who dressed somewhat like a soldier...in fact he is a soldier.

Louis: the bald young guy looks cool with his wonderful tie.

In the game, for each campaign you play, in order to gain access into several save houses in each of the 5 stages, not only you should hold your guns to express your wildness to teach them a lesson but at the same time as well you will face 5 special boss type zombies, which made the game much more exciting.
The special infected are:

1) Hunter
Fastest speed among the five, will glomp on you and leave you in a completely hopeless situation unless your teamate rescue you by killing him or pulling him away.

2) Smoker
I actually can call him a lung cancer patient. Will grab and drag you using his long tongue. You can't escape unless aiding by teamate

3) Tank
The largest and probably most difficult to deal with. Able to throw large rocks, cars etc and inflicting great damage to player. He can't eat coz his lower jaw is gone.

4) Boomer
Characterized as a fat guy with multiple abscess on his body, will vomit out bile onto player, making the player temporarily blind and triggers a horde (crowd of zombies) to attack.

5) Witch
The most creepy and passive female infected in the game, because she will just crouch on the floor and cries, making very disgustingly creepy sobbing. Most of the time she will just sit in the dark corner and when you approach without knowing, she will stand up slowly and attack suddenly, also provoke by torch light, loud sound and shooting. Most difficult to kill next to Tank.

Lol longest intro I have ever made. Anyway hope you like.
Click for large Image to see the detail

Character Bill, Zoey, Francis and Louis © Valve