Pros:

- Good idea

Cons:

- Badly lagging at some parts, unplayable for low end machines.
- Way too hard
- Teleporting saferooms (ehh)

Conclusion:

This campaign  seems to be based partly on Legend of Zelda - The wind waker. Basically first map layout is the outset island and 2nd is ganon fortress. The draw distances are huge and this lags quite badly on the older pc's and even on the good ones, there are areas where this just becomes pretty much unplayable. The difficulty level is set on too hard, it's like having Expert x 3. 2nd map is nearly impossible to complete because so many zombies come out on the top at the end + the small corridors are full of witches. On the end of 2nd map, infected can block the ladders so no one can even climb on them. The 3rd map lags very badly after the "elevator train" and sometimes the tank comes down on the elevator while the players are inside of it, no where to run. Design is kind of plain, without much of a detail. Just huge levels and long distances to go.

I've seen many better campaigns than this one.