Stamina

Summary
Stamina is an important thing to have so, you can sprint and jump. Stamina can also be used while swinging a melee. Stamina slowly regains after you use it but, if you crouch it makes it go faster and you don't have to wait so long.

Gaining Stamina

 * Walking (Not Sprinting)

Losing Stamina

 * Sprinting
 * Swinging your melee