Campaign mode for ZKW?

Here's a picture of a doge.
Now that I have your attention, let me ask you something.
ZKW, and campaign mode.
Yay, or nay?


I'm sure all of you already know, that after the first few hundred rounds, ZKW tends to get boring. I've tried to come up with multiple ideas that would make the game more interesting, even on the later rounds, but nothing seems to be working for long.

So, this one particular idea has been in my head for a few years already, but I never haven't had enough time, or interest to make it happen.
So, this campaign mode. The gameplay wouldn't be changed too much. You could still play as long as you wanted, BUT with a little twist. Once you've gotten to round X, a door would open. Or any other kind of transition thing (train, car, plane.. Hole?) in which you could enter, and you would then go to another area of the map. So, let's say you're in Abandoned Hospital. The door opens, and you go in there. Boom, you're now in another section, as big as the first one, of the hospital.

Each level would have 3-5 sections in total, and once you've finished them all, you win. Yes, sounds weird? Winning in ZKW? Well, yes. You would win, survive another day. But you could still just stay, in any of these sections, and make your last stand, just like now.

So, any ideas? What does this make you feel?