MOC 435 Fire Control Systems Tech, Sgt (retired). Worked on all weapons fire control systems and components of the Artillery, Infantry and Armoured units for 15 years. If you could look through it at daytime or at night, chances are I was responsible for maintaining it. This included thermal imaging sights, low level TV cameras, laser rangefinders, gunner and crew comander sighting systems, rifle scopes, etc, etc.
Two years before I retired back in '96 they dissolved the MSE Op trade. When did they bring it back?
EDIT: Personal weapon was the 7.62mm FNC1 semi-auto rifle until it was replaced with the 5.56mm C7 semi-auto rifle.