Yeah it's easy. You just create the bot by bringing down the console and typing:
/addbot sarge 4 arsewipe
might have that in the wrong order. Type /addbot on its own to see how to use it.
"Maybe you have some bird ideas. Maybe that’s the best you can do."
― Terry A. Davis
NAME: cannonical name, e.g. doom
SKILL: 1 - easiest ... 5 - hardest
TEAM: red, blue or free (r, b or f for short)
DELAY: delay in ms before bot connects
ALTNAME: in-game name, use quotes for names consisting of multiple words, e.g. "Buck Rogers"