Um that is what I thought which is why I didn‘t even bat an eyelash so to speak when the recruiter mentioned it when I handed in my app.
Now I finally took the time to read into it and this is from the CF Army page.
"The Fire Control Systems Technicians are electronic/optronic specialists dedicated to supporting the Land Force and other CF elements. They are responsible for the maintenance and modification of electrical, electronic, optical and precision mechanical equipment. Electrons and photons are second nature to these soldiers.
Related civilian occupations
Electronic Engineering Technician/Technologist
Electro-Mechanical Technician
Surveillance/Thermal Equipment Technician
Automated-Processing Repair Technician
Television Repair Technician
Assembler-Electronic Equipment
Electric Truck Servicer (Forklifts)
Air Conditioner Repair Technician
Survey Instrument Technician
Optical/Optronic Technician
Laser Equipment Technician "
Army Web Page Description FCS TECH Now how stupid will I look to call in and change my choices to LCIS TECH, ATIS TECH, FCS TECH? Already phoned in and changed it to ATIS from COMM RSCH.