All three Stealth Challenge rewards

All three Stealth Challenge rewards 31. Silent Step | Stealth Challenge 1.0. Enemies need longer to detect Miles. It gives you more room to recover from an imperfect approach. It doesn't make an exposed position safe forever, so use the extra time to get behind cover or change elevation. 32. Scare Tactics | Stealth Challenge 2.0, after completing 1.0. Stealth takedowns provide more Venom energy. A quiet opening can therefore leave you better prepared if a later part of the encounter turns into a fight. This is useful even if you don't intend to stay completely silent for the whole mission. 33. Surprise Attack | Stealth Challenge 3.0, after completing 2.0. Web-Strike Takedowns knock nearby enemies back. That can create breathing room around the landing spot. Don't confuse the knockback with a guarantee that nearby enemies will fail to notice the takedown; scan the situation before jumping in.