Very nice looking! With an English translation, I'd give this a try (after replacing some of those sirens, though. Ow, my ears.). I noticed you got the Stryker script working nicely with an on-map hospital
The Copenhagen mod gave me inspiration to add call commands to a map object so I didn't have to rely on personnel, and that and this mod make me want to make some more complex commands now.
Say an MVA script, that will automatically run separate existing scripts to dispatch a fire or EMS supervisor, a rescue squad, a paramedic ambulance, a patrol car, and a tow truck, all with one click. I'd have to see if there's a way to send the command position to all the sub-scripts that would be run, or if I have to go the long route out putting all the separate scripts into one large command, which would be a bit of work.