The mission requires secrecy. Failure is not an option.Play as Ada Wong in this additional scenario and experience the events of Resident Evil 4 from her perspective filling in unanswered questions posed in the main story.In addition to the action available in the base game with Leon a grappling gun can be used to get to various locations as well as take down enemies from a distance and launch a ranged melee attack. This allows for a more exciting and fast-paced gameplay experience.