Your scripts.pbo file can located here:
Your scripts.pbo contains MANY variables that affect game play. From stamina to physics, all of these variables are adjustable TO AN EXTENT here. Make changes incrementally, meaning 1 or 2 edits at a times, this is in case you need to walk back changes if your server doesnt start. Walking back 15 edits is frustrating and hugely time consuming. Below is a step by step process to adjust Stamina.
Stamina Edit
Step 1
Download and install PBO Manager here http://www.armaholic.com/page.php?id=16369
click on the following when you are on the page to avoid other bullshit:
Step 2
Obtain a copy of your scripts.pbo using FTP or other means. FTP is obviously only required if you are using a GSP(game sever provider).
Step 3
Open you scripts.pbo in the PBO Manager:
Step 4
Open the 3_Game file tree to display this:
Step 5
Drag the "constants.c" file into a new folder that you will create called /Stamina Script Edits. I want you to make TWO copies of this file, and place one copy into a folder WITHIN the /Stamina Script Edits folder called /Original Script. You WILL NOT be editing the constants.c file located in your /Original Script folder as this is a backup in case you mess up the other one.
*IMPORTANT- DO NOT CLOSE THE PBO EDITOR AFTER YOU DRAG THE "constants.c" FILE INTO THE FOLDER YOU CREATED! You will need to drag the "constants.c file BACK into the PBO Manager, and into the 3_Game tree. Make sure you dont drag that file ANYWHERE else before you repack the PBO.
Step 6
Open your "constants.c" file with a text editor or just use Code Writer which is what i use and you should see something like the following:
Notice that the line we are editing line 344, use the line # and make note of it in your change log. Mine is currently set to 0.25, and this causes Stamina to drain slightly slower and allow for longer sprinting. I wouldnt suggest getting rid of stamina all together as its a key feature in survival and tends to discourage alot of people from joining your server. So a slight nerf in this case generally advised. Be sure to SAVE the file once you edit it. Once you've saved the file, you will need to drag it BACK into the PBO Manager, and into the 3_Game tree. Once you have done this click on the following:
Then click on the following:
Once you have clicked "Apply", a digital signature is reapplied to the scripts.pbo so that you wont get any errors when the game checks for digital signatures.
Step 7
Upload and replace your scripts.pbo located in your data folder with the one you just edited and restart your server. Join in and run around a bit to see the difference.
You can change as many variables as you wish, but keep in mind, the server will only let you change them to an extent and after that it simply wont start. So make your changes small and incremental to avoid undesirable results.