I have not beaten the game. But I read many faq's about it. it seems like you can go back to the islands and finish up quests that you have not done. I think if you take all the outposts.. there is an outpost reset option, that turns them all red again, and makes them all like you never took them. Except the memory cards and stuff like that are gone.
I am not aware of any chapter redo.. so I dont think you can do that.
I am on the last 3 missions, and it says this is the " point of no return' so Im not doing them, im trying to do everything before I only have them left.
enjoy. --- Dr. Darrell of Michigan. Signed up for a 13.1 mile (21 KM ) half marathon on May 5th. Wish me luck!
You do get an option to reset the outposts but I have never done it and sorry, there is no chapter select, once you beat that part its over unless you start a new game. However, you can still do the side missions you didn't complete. --- PSN: KBGiantsfan My Youtube: http://www.youtube.com/user/kblunt420?feature=mhee