A modified version of Greyscale's sprint plugin that adds a stamina bar and some natives to modify a player's stamina.
I have only tested this in Counter-Strike Source but it should work in CSGO.
See natives
ProXP can use this plugin to award extra stamina based on the player's level.
See Greyscale's sprint plugin for more information on installation and cvars.
For more see the original plugin: Greyscale's sprint plugin