PeZBOT is a multiplayer bot-mod for Call of Duty 4 and World at War. The aim of the mod is to introduce relatively life-like A.I. to local multiplayer games so those who choose not to go online or prefer to practice against bots before doing so, can. This mod is no longer in development but feel free to download the source code, create your own version and share it in the forums.
This review is based on PeZbot for Cod4 modern warfare, played on team-deathmatch, hardcore mode, mostly 3v3.
Pros:
-fun for training offline; bots don't cheat :)
-no crashes; no lag in 3v3
-all official maps are supported
Cons:
-bots just use the same paths/waypoints over and over
-starting from level 1 and having to unlock everything again