Though all of the campaigns feel similar in terms of their basic components and pacing, they all have their own styles and idiosyncrasies.
There’s also a fourth-following Ada Wong-that is unlocked after the other three are completed, though the first trio can be handled in any order the player wishes. Leon Kennedy teams up with agent Helena Harper to deal with the G-virus as it breaks out in a small American town in one campaign, Chris Redfield and Piers Nivans fight Bio Organic Weapons as they spread through China in another, and Jake Muller and Sherry Birkin attempt to escape mercenaries and mutants in Eastern Europe in the third. Resident Evil 6 shuns the series’ standard narrative path in favor of containing three different, consecutive cooperative campaigns following a viral threat on a global scale.
