Well who said you are always going to be swimming? Unless they add a feature where you can shoot while you're swimming or who knows you could probably walk on the ground (slowly) while shooting the zombies? Treyarch can easily work around it like they did on Moon. I still don't see how it will be annoying.
There is never going to be an Atlantis map so give up on it.......and the element theory is $hit if tranzit is fire then why does it have an electric boss and u forgot mob of the dead which people have said is electicity but it has a fire boss. Just give up on it ur not helping anyone here by posting this it is a waste of breath and if u could swim then zombies would come at u from all around (even up) and it would be impossible u don't walk in the ocean so u would just be floating everywhere. Just give up on this map
You said something about the maps being elemental and then you brought up the bosses, which are suprisingly elemental. And i know you didn't, im just trying not to over post. It was meant for the other guy.
But yeah he has a point. Electric boss, fire boss, what looks like to be either a water or possibly wind boss next map? I wonder what element chart they are going off of... But i also see your point and agree with you on that overlandpark. His theory has yet to be proven, despite coming up with a few good points.