[lelemaster]

If he was talking of the fire thing, well there is pretty much nothing scripted in it. They made a timer for the explosions and created an object for the fire. Then they added in OnPlayerEnterCheckpoint to kill the timer of the creatimg explosions and to destroy the fire object. That's pretty much what they did.

Written with my Ipod so I can't really show you some codes
I wish I helped you.