I have a func_tt which worked well. I added a bridge above it's path and made some scripting: the scientist kills a zombie - used some aiscripteds (scientist goes, hits the zombie) and a trigger_hurt (start off) which kills the zombie after the scientist hit it (so it looks like the sci killed the zombie), all with a mm, and at the end the hurt is turned off. After all this my tracktrain went straight under the bridge but stops there and the sounds keep coming. The train with the player is not that high so the bridge can't be blocking the way, I think it's more about the scripting or the trigger, but I don't know exactly. Please help me.
(The map is a part of a long HLSP map-sequence which I'm making these days.)