Im trying to get Mapping the Island achievement on Xbox 360. Ive got the two in Episode 4, just need the one in Episode 6. I have completed the game already, but when going to play episode, it only lists the first five episodes, and i really dont want to do episode 5 again (Black smoke + Dynamite :S) So is something wrong here or...???

Help me out someone please!

Come on guys 37 views, help us out here lol >_<