Fallout Interactive Experience
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|For a cross-game overview of this perk, see Silent Running.|
“With this Perk, you now have the ability to move quickly and still remain quiet. You can Sneak, and run at the same time. Without this Perk, you would automatically stop Sneaking if you ran.”— in-game description, Fallout
With this perk, one can use their Sneak skill and run at the same time.
Behind the scenes
The perk is a reference to the 1972 film Silent Running, which was set against a post-apocalyptic sci-fi backdrop.