Sabre99

I want to make a similar type of mission like a RobJ's helicopter pilot mission. But I couldn't understand anything from his mission file. There wasn't much I could refer to. And It's hard to find tutorials for this. Could someone please let me know if you know any tutorials about how to create a mission that create tasks randomly and continuously?

I need to enemy tank stay on roads. So I put " this forceFollowRoad ture; " script on it. However, this causes problem on AI behavior. Tanks are won't moving. Plus, they just wiggling and spinning around. How can I fix this?