Can't Locate add on

[John W. Hamm]

this may sound a bit crazy or maybe I have just mis-understood how this add on was to be released.

I can't find it at any retail location at all. I have tried, everywhere in Oklahoma City. Walmart, Target, Best Buy, Comp USA, Game stop, and Game exchange.

Every place tells me the game add on does not exist, so what gives? where did you guys buy yours?? aside from DL. not that I know where that is either.