So, I'm not really optimistic about this, but I was wondering if there was some sort of fix. I went to load my file, and it wouldnt load. Things just froze up...so then I go to load a different file to see if that one worked. Oh joy, it worked...then I go back to the load screen, and I see that the file I originally wanted to load has now become a duplicate of the file that successfully loaded. What the crap? Help if you can. i really dont wanna start all over

I agree that it is overrated...probably not the most overrated ever though ha. I bought it on friday knowing that it wasn't going to be deep or anything like that, so i wasn't really disappointed. It is definitely fun to play with friends, but the fun ends there and you realize it is a very shallow experience. I know people dont like when others complain about there only being 4 levels...but come on, that is ridiculous on a full priced game. The "replayability" everyone is talking about isn't what i thought it would be either. Overall, yes, definitely overrated 

http://www.destructoid.com/blogs/godkow/split-screen-confirmed-for-left-4-dead-360-91956.phtml

Well i just found this, but it was posted a while ago. things could have changed