What you will need. an mp3. and counter-strike:source C:\Program Files (x86)\Steam\steamapps\USERNAME\counter-strike source\cstrike\sound Create a folder called ui Place your mp3 in this folder and rename it gamestartup1 You can have up to 4 start up sounds if you want more than one change the number after gamestartup to 1-4 Next time u start Cs:s it will play this file
not really you make 1 thread, you put Startup sounds blah blah blah there is an EDIT button ----------------------------------------------- tutorial tip #2 - rinse and repeat.