Not even a Medic can help them now. Zombies are coming to Team Fortress 2 as part of the fortnight-long Halloween event that will add an undead MvM mission and a new King of the Hill map haunted by the ghost of the Soldier's nemesis/angry housemate , Merasmus. He's placed a magical booby trap on the control point that will spin a "wheel of fate" every time it changes hands. What it does, no-one knows. Apart from Valve. "One of many potentially horrible fates await you! Or maybe something good!" they say.
According to the latest post on the Team Fortress 2 site , magic spells will also drop randomly throughout the event. These can be cast on backpack items to give them "shifting paint colors, ghost summoning, flaming footsteps and more." There are also a couple of new achievements to chase. You'll get the first for killing Merasmus (properly, this time). To secure the second you must "get to Skull Island and claim your reward!" Intriguing.
The event starts today, and will run until November 8.