hi everyone, I need help remembering the name of an infection map on halo 3. It's on sandbox in the sky bubble. the humans start out in a room, while the zombies use mancannons to get to the huge building the humans r in. after a while, gravlifts spawn to take the human to the next floor, you need to get to the roof while survivng. this is my all-time fav infection map from halo 3, so if anyone could give me a link to it or something, it would be appeciated. Also it was on double exp weekend. thanks in advance.