"No hope left. The world is in turmoil. The C virus has spread to epidemic proportions. The bioterror threat looks to lead humanity into a chilling end of days. When all the goodbyes have been said and all hope seems lost, one final struggle begins. Featuring four unique scenarios and four gameplay styles. Enter the darkest corners of the world alone or with up to four players online"--Container.

"Four player co-op is only available in certain stages" --cover. Some editions include all map and multiplayer DLC. 1-2 players; online, 2-4; network, 2-6. Warning: if you have a history of epilepsy or seizures, consult a doctor before use. Certain patterns may trigger seizures with no prior history. Before using and for more details see instructions for this product.