Never gas release trigger?

[katdogfizzow 13]

Using ace mod of course,

I have a mission where were transporting 2 "cargo_container_net" in 2 trucks using the attach to command. Is there a way to release a huge cloud of nerve gas if either the truck or the cargo is destoyed?

Ive seached gas and cant seem to find a way yet. maybe someone has an idea??, thanks, cheers