I would use the truck's master stream a lot more if it had a longer range. I've tryed tinkering around with the extingush script but I couldn't make the range longer. As for the vests, I've always thought that LADOT should be modeled in game. I know you have mentioned that LAPD doesn't respond to non-injury traffic accidents. You could use the regular cop (from EM4, without a gun) as a base and remove the "place detainee in vehicle" command so the LADOT personnel can escort but not arrest people.