Endurance

Endurance is a Speed Perk featured in Modern Warfare: Resurgence. 

''"Pick up the pace when time is shortand you need to cover a lot of ground. Outrun players who pass over this Perk, reaching objectives more quickly and making hasty retreats when under heavy fire"

- In-game Description ''

Overview
Endurence gives the user an infinite sprint duration, and is unlocked at level 21. Endurence is a great perk to use for rushing classes, as the infinite sprint is a huge mobility boost. It is often paired with Agility when used for rushing for an even greater boost in speed. Endurence is also useful in objective-based game modes such as Domination and Demolition for blitzing objectives quickly. A player with Endurence and an Submachine Gun can quickly capture flags and plant bombs before an enemy can react, possibly turning the tide of a battle.