You need to make changes to bot.cpp or your bots will either have negative hit points and will not melee, or sometimes insanely high hit points instead.
Details:
http://www.eqemulator.org/forums/showthread.php?t=39013
There is also possibly an issue with bots crashing the game if you do not camp them out.
Details:
http://www.eqemulator.org/forums/showthread.php?t=39327