In Client 5 is not connected 373 days ago: Can you post a console log?
When the problem occurs, type "/condump temp.txt" in the console (without the quotes), locate the temp.txt file (likely in %appdata%\Quake3\baseq3) and post it here.
In Couldn't Reload Quake III Arena/baseq3/PAK0.pk3 575 days ago: The script just contains commands like you would type in the console, each command on its own line. You can see the syntax for the addbot command by typing /addbot in the console while the game is running. A .cfg file to add bots might look something like this, with the numbers being the skill level. You can use the /exec <filename> command to run it.addbot anarki 2 red
addbot angel 2 red
addbot biker 4 blue