Installing/Using a Script
For example I will use this script
alias burstfire "bind mouse1 burst3; bind f standard; developer 1; echo Burst Fire Enabled; developer 0"
alias burst3 "+attack; w3; -attack"
alias standard "bind mouse1 +attack; bind f burstfire; developer 1; echo Burst Fire Disabled; developer 0"
alias w3 "wait; wait; wait"
bind "f" "burstfire"
Now first things first!
Open up notepad Highlight the script above by clicking and dragging the text so that it is highlighted Now you can either right click and select COPY or you can press CTRL + C
Now go to Notepad and right click and select paste OR press CTRL+V
Now go to FILE > SAVE AS
Name it "burstfire1.cfg" without the speech marks and click the drop down menu in save as type to ALL FILE TYPES now go to this directory
C: > PROGRAM FILES > STEAM > STEAMAPPS > COMMON > COUNTER-STRIKE SOURCE > CSTRIKE > CFG
and save it in there, and while your at it create a shortcut to cstrike on your desktop by right clicking the folder and select the "CREATE SHORTCUT" option, now drag the shortcut to your desktop and name it what ever you want.
Now start Counter Strike and enable to console by going into options on the main menu then select Multiplayer and Tick the "ENABLE DEVELOPERS CONSOLE" checkbox now press the tilde (~) key and a small box will appear
Type this into it
Exec burstfire1 and click submit it will load the script
Now go into a server and press F to enable the burst fire and F again to disable it
NOTE
1. Naming the file autoexec.cfg will make the script run when you start css
2. To use any other script use the same process as above but paste the other script in instead
3. Use scripts at your own free will as some people have been banned from servers by admins for using scripts