Thinking about the time I was playing this when I was 11 on Xbox Live and I was talking with a group of random guys who were so excited that I was a girl (I doubt they knew I was 11) and then one of them asked if they could ask me something and I said sure and he asked "How come girls don't like me?" and I took a second and then I said "Because you're playing Left 4 Dead 2" and then everyone in the party started screaming and then he disconnected.

I liked this one better than the first one. Definitely enhanced some gameplay aspects and I loved the new zombies they introduced.