GameDynamo - "Tired of running right into battle in Batman: Arkham Origins? Try your hand at stealth by completing special Predator Challenges. There are 12 of these scattered around Gotham, and to complete them you’ll need to be sneaky and use Batman’s stealth abilities, like Silent Takedown. There are 3 medals for each challenge, and getting all the medals contributes to the “Medalist” achievement or trophy. Ready to get started?"