flood AI help

[grimmodder]

so i heard you could put AI in multiplayer so i folowed a tut on how to put AI in and it worked and i played around with diffrent dtuff for a while then
i wanted to put flood in a map. so i folowed a tut (basic flood AI in mp) and got the flood carrier in. when i when and shot him he fell then it froze. i did every thing right so is there something the tut left out?

ps: when i learn i cuple more things about AI im going to wright a very good tut on how to do everything AI for complete noobs that answers every question posible.