Even once a week is already too much, the whole point of cading is being undone by all these maps, one person who can easily defend at certain spots without allot of effort is just not how it should be in my opinion. It should become way and way harder. zombies should be enabled to break cades faster and easier so you force people to work together this dismisses also the point of rank whoring because alone you won't survive, and another good point is that when people have to work together they will become better which is what we all want.