Now on its 7th year, Operation Plague is a charity event, where they organisers conduct a food drive whilst players all have zombie killing fun. So better go to Wisconsin today if you want to be in a "Walking Dead" - like event... "Operation Plague is a Wisconsin airsoft themed event based on survival horror... and zombies! In this event, you'll assume the role of a survivor and attempt to survive the horde of ravenous infected. You'll also take your turn and get a chance play a flesh eating zombie! Only one question remains..."