The levels all feel very similar compared to left 4 dead when levels were iconically memorable due to unique environments. I can't really fault the gameplay itself but while a friend and I were booting up the game and reminiscing of left for dead two's acts, talking about the concert, mall and carvival, we couldn't help but be disappointed that back 4 blood was just "spooky woods" or "town" all the time. Didn't feel like we were making progress at all.