I just made a plan of a map, as if to give you an idea, it is a two-story house with a pool in the backyard, the red lines are where the zombies come out, in the pool there is no water, on the second floor is the mystery box.
really? that's fantastic, I'll be waiting for future updates. Do you think you can add the Raygun and remove the Minigun? let's say it would be better, but make it only get in mystery box