This map is a ton of fun, but the global spawning thing is really limiting how much more space you can use. Try playing ghost on the upper levels and what'll happen is you getting swarmed from all the zombies spawning up there with you. This also really sucks with objectives, especially the ones where you need to move items. Since zombies dont stop spawning, you can end up getting stuck in a hallway trying to make a breakthrough, only for zombies spawning further in said hallway to halt your progress, and also dealing with more zombies spawning behind you. If the zombie spawns were all in the outside past the gate walls, it would play much better.

the hold zone is inbetween the 2 towers

where do i do the obetive in wave 2?

nice map