how to tell AI to attack player?

[wook]

I'm trying to make a very simple campaign. Basically, the user is defending and the AI is trying to destroy a building inside the user's fortress.

I need help on how to get the this to work. How can you tell the computer to go attack a specific target or to attack the user fort?

[Stan|SCN Punk]

I am not sure that you can achieve that goal with AI scripts. Use triggers, and particularly the "Task Object" trigger to order the computer to attack a specific target.