Tbh the whole point for the first left for dead was a simple, fun filled, get from a to b, zombie shoot em up... thats what has made it so good! Spamming it with over complicated stuff will ruin its feel. But do agree that could of had a few more levels.
Being a frying pan in the new one has just made it awesome though...
Don't, after rolling that final 1 too many, flip out, climb up on the table and jump up and down on your opponent's models screaming 'APOCALYPTIC BARRAGE, MOTHERFUCKER!!!'.