Ok so just in case you don't know what left 4 Dead 2 is it's a game made by the company valve about the zombie apocalypse. There are four survivors who star in the game and stay as a group to survive while running from not only a horde of zombies but special infected as well.
Ellis : Ellis is a mechanic with a love of life, a firm belief in his own immortality, and the ability to treat any setback as a fun dare to impress his friends. Born and raised in savannah, Ellis divvies up his time working at the local garage, hanging out with his buddies, and dropping by for sunday dinners with mom--why'd anybody want to live anywhere else?
Then the zombies had to go and spoil it. Now Ellis is looking for new things to occupy his time, finding plenty. It turns out the zombie apocalypse is one big dare, and there's no shortage of crazy stuff he can try to impress his new buddies.
Hometown' Savannah, GA
Age : 23
Rochelle : As a low-level associate producer for a big-name news station, Rochelle's job mostly consisted of lugging cables and fetching coffee. But when the outbreak hit and staff started calling in sick, Rochelle got her break: producing a segment from savannah about the evacuation center located there. She was still setting up cameras when her big story became a war zone.
But that doesn't mean she's letting go of her dream job yet. Surviving a zombie apocalypse is just something else she can use her wits and drive to produce the hell out of.
Hometown: Clevland, OH
Nick: A lifetime of drifting city to city, finding back-alley card games and trying to stay out of jail taught Nick two valuable lessons: Don't trust anyone, and look out for number one.
He'd come down to savannah looking for some gullible fish on the riverboat gambling cruise circuit. Instead he found a city about to be engulfed by infection. Now he finds himself forced together with three complete strangers in a fragile alliance that goes against every instinct he lives by. But he's going to have to learn to trust them if he wants to survive
Coach: Coach has a big heart, a healthy appetite, and a wicked swing with a chainsaw. After a knee injury ended his career as a defensive lineman in college, Coach salvaged his physical Education degree (barely) and landed a job teaching health at the local high school in his hometown of savannah.
Working as a defensive coordinator for the freshman team might not have been the best path to a pro coaching career; but it's come in pretty handy in guiding a group of survivors to safety. Coach has watched his beloved hometown get ravaged by infected-now it's time to deliver his own brand of southern hospitality.
Hometown: Savannah, GA
ok so now that you've had a general bio of the characters from the game and what there pasts were like, it's time to show you the special infected starting with the main five from the original left 4 dead.
Boomer: The boomer is a special infected that vomits a special bile at survivors, which temporarily blinds them and draw common infected to them. At a distance the boomer isn't much of a threat; his large size and low health make him an easy target against any weapon at mid or long range. However, if within range he can vomit on survivors, attracting the horde. When he dies, he explodes, covering any survivors who are close enough with bile, blinding them and causing them to stumble backwards. The boomer is notorious on the expert difficulty for being able to snipe survivors. Boomers can be anticipated because of the near-constant gurgling they make. In left 4 dead 2, there is also a female boomer, although the gender does not affect anything.
Hunter: The hunter is a special infected that is not as mutated on the outside. The hunter is extremely fast and agile, capable of quickly scaling walls. Additionally, he can pounce and pin down survivors, clawing at their abdomen until either the victim is dead or the hunter has been knocked off or killed by another survivor. They are not the most physically robust infected, having relatively low health, and thus it doesn't take very much to kill them. When the hunter crouches down in preparation to punce, it growls, giving it away to any nearby survivors. However, whilst standing, it makes no noise.