In real life fire departments use alarm systems to bring more units to big calls. Since they just added mission evaluations it’s the perfect time to add an alarm system.
Reported structure fire (box alarm)
Small: 2engines, 1ladder, 1battlionchief
Mid: 2engines, 1ladder, 1battlionchief, 1ems
Large: 3engines, 1ladder, 1battlionchief, 2ems, 1rescue
Confirmed working structure fire (1st alarm)
Add: 2engines, or 1engine, 1squad/rescue
2nd alarm structure fire
Add:
Small: 1engine, 1ladder, 1battlionchief, 1ems
Large: 3engines, 1ladder, 1rescue, 1battlionchief, 1ems
3rd alarm structure fire
Add:
Small: 1engine, 1ladder, 1rescue, 1battlionchief, 1ems, 1RAC
Large: 2engines, 1ladder, 1rescue, 1battlionchief, 1ems, 1RAC, 1tanker, 1emssupervisor
Anything above 3rd alarm
Add: 1engine, 1ladder, 1ems