you can only do this on online mode and you must get to a certain level
No it is not, it is only multiplayer online.
personally i believe that red dead redemption is better as it has a longer story mode
It...isn't?
It has been out
Yes, you can.
It depends on what internet you use but it uses the same as any other online game you play
play on as his son
do your missions
No, the game isn't THAT interactive.
just buy it from a store legally
No you cannot