Tier666TA is a bot AI modification focused on replay value. Bots can now move around just as pro players do. To play this mod, you need both Quake3 Arena and Team Arena installed on your PC.
The next version of Tier666(v4.0, not released yet as of 2012/1/16) guarantees the significant advancement of bot movement compared to the previous versions.
Major differences are:
1. More fluent/seamless/precise movement
2. Bots can play any level on the fly without additional setup
3. There are many parameters available to suit players' needs