https://www.moddb.com/mods/u2xmp-bot-support
Last year I implemented a basic bot support mod using a mix of the original bot code from UT2003/4, Free-Monkey's modifications, and takwu's native bot conversion. Bots will fight, hack, go after artifacts, and call out to their allies, with varying degrees of competency. Vehicles are not supported.
Maps a few custom actors and pathing for the bots to work. I included the following maps:
-APv2-RGB
-Garden
-Lowlands
-Nakoja
-Sirocco
-Sunset Beach
-AP-Anubis-IIv2
-Alcazar
eq2/mumfrey was also kind enough to let me host a server with them, which is currently running the above map list.
If you want to play a game offline, you can enter the command "open <mapname>?difficulty=<#>" without quotes, where <mapname> is a level that has bot support and <#> is a number 0 through 7
Not sure if I will ever get around to finishing this - I really hit a wall with the vehicles. I did enjoy working on it for a while and might return to it some day.