I play offline with my old man in co-op mode. RFOM 1 was the best game out on the PS3 for this by far for quite a while.
However in resistance 2 you can't play the campaign in single player!
Why oh why oh why did they take this out.!
They have a split screen co-op available but it is designed for up to eight players and it doesn't really work with only 2 of you.
Also they are no check points and you can't save your progress, so every time you die you have to go back to the main menu, setup the game again and start all over.
To sum up, i am gutted as i was looking forward to this for ages!!
Insomniac you messed up big time!