I enjoyed this one. It is simple but not easy, a reasonably tough but forgiving (in terms of rebooting save points) TBS. I would consider this a VERY good "beer and pretzels" kind of game. They are building in more monster types in the sequels, and the fact is that - like in "real" zombie epics - mass has a quality all its own. Always heal, use your grenades carefully, and try to max out on action points so your heavy gunner (s) can fire twice a round. Also recognize that the M-16, for some reason, runs out of ammo very quickly, forcing you to keep an eye out for drops of other weapons. And watch out for "own goals" - weapons can damage your own crew...