Good Campaign

The atmosphere feels like you are playing Left 4 Dead 2 but much scarier. However ending is easy to complete, just gather all the gas cans before calling the helicopter makes the ending like a walk (or run) in the park.

I tried 10+ campaigns and this one is my FAVORITE

No botnav issues.
Awesome atmosphere.
Great finale.
Balanced SI spawn.
Moderate spawning of supplies for each chapter.
WHOLE CAMPAIGN FEELS LIKE YOU ARE IN AN INTERACTIVE MOVIE.