This is the "Iced-Hellfire-Dev" branch of the RBDOOM-3-BFG port.

Native Bot Code: Heavily refactored Quake 3 AI bot code is in d3xp/bots:

Console Command:
fillbots <-- filles the multiplayer match with bots.
addbot <botname> <-- adds a specific bot from botfiles/bots.

Native AI code documentation: http://www.doom3world.com/index.php?threads/doom-3-bfg-native-ai-code.91/

Native Weapon code documentation http://www.doom3world.com/index.php?threads/doom-3-bfg-native-weapon-code.14/post-285