User blog:I Need Ammo!/Multiplayer bots + problem with Quake II and exp. packs.

I would like to play some multiplayer match on Quake, Armagon and Dissolution with computer controlled opponents but is such even exists? If yes, could someone  give me a link? Another thing. My copy of Quake II and exp. packs are a bit laggy so gameplay isn't very smooth. Is there some sort of solution for this or kind of patch? Running on XP.