You were just in the muddy trenches in the warzone in Northern France, also known as Excavation Site 64, in 1918. You walked into what looked like a giant footprint in the mud, trying to get a good distance away from the undead so you could shoot them, until you saw what looked like a... GIANT ROBOT in the distance?! As the metal monstrosity loomed ever closer, you realized what made the footprint you're in right now... Eventually, the robot raised it's foot over where you were.