you cant
Go to on line as usual, and go to your challenges and pick undead overrun.
I am sorry but there is no offline co-op
yes, you can have up to 4 players offline
its on Undead Nightmare
Because undead nightmare is a seperate scenario from the ordinary red Dead Redemption and they are both single player.
yes it can it does not just have xbox and ps3 live it also has offline single player.
You cannot play multiplayer mode without internet connections.
You can't play coop on Red Dead Redemption or Undead Nightmare.
Xbox LIVE
You cannot get Red Dead Redemption - Undead Nightmare on the PlayStation Portable.
No, if you buy the one for 20 dollars that is undead nightmare but not the original. The only way to get both is buy the Original Red Dead Redemption and then buy the Undead Nightmare add-on
No it is not, it is only multiplayer online.