Three issues:
If you jump in and trigger the script then jump out, the script doesn't seem to care that you got out and will instantly kill you if you jump back in.
Script sometimes instantly kills without warning on your initial entry into the vehicle.
Script is sometimes triggered even though you have a crewman kit.
Can you set the script to something less than lethal, like maybe just making you exit the vehicle?
If you jump in and trigger the script then jump out, the script doesn't seem to care that you got out and will instantly kill you if you jump back in.
Script sometimes instantly kills without warning on your initial entry into the vehicle.
Script is sometimes triggered even though you have a crewman kit.
Can you set the script to something less than lethal, like maybe just making you exit the vehicle?