I guess what I hate about zombie games,and zombie media in general,is the whole "we're screwed" thing that pervades the whole genre. The idea that the zombies are an unstoppable force even when they're not.
For example,if you have a means to quickly kill a zombie,like shooting them in the head,it takes away the viability that these things are a real threat any more than any other deadly illness would be. One might point to,say,the black plague and say "But look how many people died because of that",but one has to bare in mind our knowledge of how to contain a disease was very limited back then due to how little we knew of biology. Modern quarantine techniques would make it much harder for a disease to get out of one city,zombies or not.
Second,the whole "attracted by sound" thing is as much a liability to the zombies as it is to the survivors. Consider this. You wire a building with homemade explosives. You turn on a radio/mp3 player/boombox in the middle of the building and sneak out before the zombies get there. Wait til it's full and boom goes the zombies. It's like the pipe bombs in Left 4 Dead taken a step further.
But over all,my point is that these zombie movies/games/etc,ultimately have this feeling of hopelessness to them. Like there's simply no way to win. And that just bothers me that all it takes is a few easily killed zombies and suddenly,humanity is on the run and everyone's dying left and right. Like we don't have attack helicopters,tanks,a full military,and,in the worst case scenario,the nuclear option. There just comes a point where you have to ask what,exactly,all these highly trained fighting men and women are doing while all this is going down? And that's not even considering how other countries would react. I'm pretty sure no country is going to sit around with it's thumb up it's butt while a zombie outbreak devours a major country.
Well,just wanted to put that out there. Thanks for reading. :D