Ranks
Rank 1
Stealth
Adds a Stealth Meter. You are 25% more difficult to detect when sneaking. Suppressed weapons do an additional 5% sneak attack damage.
Rank 2
Stealth
Upgrades the Stealth Meter. You are 50% more difficult to detect when sneaking. Suppressed weapons do an additional 10% sneak attack damage.
Rank 3
Stealth
You are 75% more difficult to detect when sneaking. Suppressed weapons do an additional 15% sneak attack damage.
Rank 4
Stealth
You are 100% more difficult to detect when sneaking. Suppressed weapons do an additional 20% sneak attack damage. Doors you interact with while in stealth no longer alert enemies.
Challenges
Rank 1: Perform 10 sneak attacks.
Rank 2: Perform 20 sneak attacks.
Rank 3: Perform 40 sneak attacks.