So I got the Limited Water Supply script working fine and I decided rather than give my guys the pump command, I'd make a whole new person; a machinist. After some trial and error I got the unit pictures and descriptions showing, he appears in the game as well. The problem is the following: despite the fact that I gave him the command, he won't board the truck once he steps out, when I click on him and then highlight the truck, he always has the icon for operating the pump. Furthermore, when I uncouple a hose from the truck, he mysteriously spawns into firefighter (with all their commands). So while this in effect solves the not being able to get into the truck problem, it creates a new one in which now I don't have someone who can operate the pumps. He currently has most of the firefighter commands except for some, like getting into the basket, cooling and extinguishing, among others. Basically he does everything minus putting out fires or breaking down a door with the ax.