Listening in on conversations can, for example, bring up all new sub mission tasks, while carefully infiltrating all the myriad of nooks and crannies available can often provide explicit clues to booty stashes, not to mention their state of mind. What isn't necessarily obvious at first is the almost subliminal storytelling going on; either in the form of snatches of conversation or the numerous journal entries scattered around that add a layer of depth to what might otherwise feel like your typical hide and sneak.