It's actually very teamwork oriented, on both sides, but more so as survivors. But yes, it is a mindless shooter, which is a nice break from RPGs, MMOs, SIMS and RTS. In other words, it takes up a lot less of my time to play and have fun and if you are having a bad session then quit and no harm done.

That being said, time for scotch and zombies. aaaaah, i love being on vacation......