The Zombie DLC was great. One of the best DLCs for the 360 IMO.
We used to play free roam and mind our own business until someone shot at us. Then we would gang up on them and make them quit after 10 minutes.
I am just Zombie'd out. But, I heard nothing but great things from it.
lol ya griefing people was so much fun. I think we stopped playing RDR free roam when we couldn't grief anymore.