- There are no character classes, every player starts off on an even footing in terms of skills and weaponry, meaning success requires teamwork and quick thinking.

- Also, as a Survivor, you can close and lock doors behind you. This effectively stalls any infected pursuing you. They can break through the door a bit at a time, but it takes a while. And Survivors having the ability to blow holes in the door as well make for some interesting scenes involving a Survivor firing into a horde of infected through a hole in a door to great effect. Of course, Tanks don't find doors to hard to open. Or walls.

- You can, if you want, decide to forgoe the realm of sanity and become an infected psychopath, bent on killing the four survivors.

- With hundreds of psychotic maniacs on your side, it may seem an easy chore, but with the infected as weak as they are (they are only human, after all), you will not survive by mindlessly charging in there.