Thousands of players are enjoying the Left 4 Dead 2 everyday due to the fact that it is a very addictive game. It allows you to play with your friends from all over the world. However, the best part of it is the fact that you need to focus on the cooperative aspect of the game. You simply cannot win alone. Zombies are going to overwhelm you really quickly. Especially stronger types like Tank.About story: Zombies, zombies everywhereEven though Left 4 Dead 2 is an online zombie game still, it has a really interesting story. It takes place a week after the events you might know from the first game. Unfortunately government was not able to stop the infection of the Green Flu.The infection was able to leave the state of Pennsylvania and spread in the southern United States of America.There are four new survivors for you to control. The first one is Nick, a gambler and the outsider of the group. He does not cooperate easily with the rest of the team and constantly complains about everything.nFurthermore, he avoids to reveal any information about himself, but from the scrap of data from conversations with him you might realize that there is some shady past behind him. Still his talents with machine guns are valuable.Ellis is youngest in the group. Before the outbreak he was a car mechanic in Savannah. He is the morale booster. Always easy going, happy and in general he seems that he does not mind the apocalypse. He is an optimist who believes that everything is going to end well. He specializes in Submachine guns and hunting rifles.Rochelle is the only female in the group. Before the outbreak she was an associate producer in the news station. She is considered as a "big sister" in the group. Thanks to her, group is always together. Her specialty is assault rifle and magnum. Last but not least is Coach. He is the oldest in the group and before the outbreak he was a football team coach. Only together they will be able to survive and run away from Savannah.Gameplay modesLeft 4 Dead 2 provides you with a few interesting game modes. Here four players are working together to get through a few levels in order to finish the campaign.You can choose one from four difficulty levels: easy, normal, advanced, and expert. Then the next mode is single player. As the name suggest is designed for players who do not want to focus on multiplayer.Here you control one character while the rest is controlled by AI. Survival mode requires you to stay alive for as long as you can. However, the most interesting modes are versus and realistic versus. In both modes there are two groups of players. One which controls survivors and the second which controls mutants.The task is simple. You have to kill the enemy. There is also a realism mode for co-op, scavenge (where players have to find 21 gas cans) and mutation. With so many modes everyone is going to find something for themselves.