This is a bit of a bump, but just to get this out there to Reserve folks, if you really want to be successful as an Int Op/Int O in the CF, do yourself (and the Branch) a favour and get a few years in another trade first. The combat arms is preferable, but anything is better than nothing...just pick something and do it. Although the Reg Force has toyed with the idea of bringing folks from off the street as Int Ops (and Int Os, which I believe has been more of a long-standing practice, mainly through RMC), this has been more of a Reserve thing.
I'm saying this as someone who joined off the street into the Branch at a reserve training unit almost thirteen years ago, and spent most of that as an NCM before commissioning. After two deployments and more exercises supporting other units than I can count, I can honestly say that I regret not spending time in another trade first. I learned a lot of very hard lessons, and I fell flat on face a lot just not knowing the culture of the combat arms. You can learn it (and I had to), but being tossed into a Battle Group for a deployment when you don't understand the first thing about how an Infantry Battalion/Armoured Squadron, etc works helps no one, least of all yourself.
More than anything, this job is based around credibility. Having a previous background (obviously some trades have more direct utility than others for the Branch), can be tremendously useful. What you know, and how you present it, means everything. How you learned it, and having those creditentials (especially if you are in the combat arms first) will make your life a hell of a lot easier. Using a 'worst-case scenario', trying to build a rapport with a group of Type-A personalities with zero time for someone who doesn't have a clue of what they do and what their capabilities are does the Branch no favours.
To be blunt, if you 'really want to join the Branch', bring something to the table. It will make life easier for you, and allows you to better support those you're dedicating yourself to (from Pte Bloggings about to head outside the wire for a patrol to the commander and their staff).
Just my :2c:, but I earned both of those pennies the hard way.